Multiple vulnerabilities in MediaTek chipsets

Published: 2021-11-12 | Updated: 2023-03-07

Risk	Low
Patch available	YES
Number of vulnerabilities	21
CVE-ID	CVE-2021-0658 CVE-2021-0671 CVE-2021-0670 CVE-2021-0669 CVE-2021-0668 CVE-2021-0667 CVE-2021-0666 CVE-2021-0665 CVE-2021-0664 CVE-2021-0659 CVE-2021-0657 CVE-2021-0672 CVE-2021-0656 CVE-2021-0655 CVE-2021-0629 CVE-2021-0624 CVE-2021-0623 CVE-2021-0622 CVE-2021-0621 CVE-2021-0620 CVE-2021-0619
CWE-ID	CWE-119 CWE-416 CWE-703 CWE-125 CWE-121 CWE-200
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	MT6873 Hardware solutions / Firmware MT6875 Hardware solutions / Firmware MT6877 Hardware solutions / Firmware MT6883 Hardware solutions / Firmware MT6885 Hardware solutions / Firmware MT6889 Hardware solutions / Firmware MT6891 Hardware solutions / Firmware MT6893 Hardware solutions / Firmware MT8797 Hardware solutions / Firmware MT6853 Hardware solutions / Firmware MT6853T Hardware solutions / Firmware MT6779 Hardware solutions / Firmware MT6785 Hardware solutions / Firmware MT6781 Hardware solutions / Firmware MT8195 Mobile applications / Mobile firmware & hardware MT8791 Mobile applications / Mobile firmware & hardware MT9636 Mobile applications / Mobile firmware & hardware MT9638 Mobile applications / Mobile firmware & hardware MT9639 Mobile applications / Mobile firmware & hardware MT9650 Mobile applications / Mobile firmware & hardware MT9652 Mobile applications / Mobile firmware & hardware MT9669 Mobile applications / Mobile firmware & hardware MT9686 Mobile applications / Mobile firmware & hardware MT9970 Mobile applications / Mobile firmware & hardware MT9980 Mobile applications / Mobile firmware & hardware MT9981 Mobile applications / Mobile firmware & hardware MT6765 Mobile applications / Mobile firmware & hardware MT6768 Mobile applications / Mobile firmware & hardware MT6771 Mobile applications / Mobile firmware & hardware MT6833 Mobile applications / Mobile firmware & hardware MT8183 Mobile applications / Mobile firmware & hardware MT8385 Mobile applications / Mobile firmware & hardware MT8768 Mobile applications / Mobile firmware & hardware MT8788 Mobile applications / Mobile firmware & hardware MT6731 Mobile applications / Mobile firmware & hardware MT6732 Mobile applications / Mobile firmware & hardware MT6735 Mobile applications / Mobile firmware & hardware MT6737 Mobile applications / Mobile firmware & hardware MT6739 Mobile applications / Mobile firmware & hardware MT6750 Mobile applications / Mobile firmware & hardware MT6750S Mobile applications / Mobile firmware & hardware MT6752 Mobile applications / Mobile firmware & hardware MT6753 Mobile applications / Mobile firmware & hardware MT6755 Mobile applications / Mobile firmware & hardware MT6755S Mobile applications / Mobile firmware & hardware MT6757 Mobile applications / Mobile firmware & hardware MT6757C Mobile applications / Mobile firmware & hardware MT6757CD Mobile applications / Mobile firmware & hardware MT6757CH Mobile applications / Mobile firmware & hardware MT6758 Mobile applications / Mobile firmware & hardware MT6761 Mobile applications / Mobile firmware & hardware MT6762 Mobile applications / Mobile firmware & hardware MT6763 Mobile applications / Mobile firmware & hardware MT6769 Mobile applications / Mobile firmware & hardware MT6795 Mobile applications / Mobile firmware & hardware MT6797 Mobile applications / Mobile firmware & hardware MT6799 Mobile applications / Mobile firmware & hardware MT8163 Mobile applications / Mobile firmware & hardware MT8167 Mobile applications / Mobile firmware & hardware MT8167S Mobile applications / Mobile firmware & hardware MT8168 Mobile applications / Mobile firmware & hardware MT8173 Mobile applications / Mobile firmware & hardware MT8175 Mobile applications / Mobile firmware & hardware MT8185 Mobile applications / Mobile firmware & hardware MT8321 Mobile applications / Mobile firmware & hardware MT8362A Mobile applications / Mobile firmware & hardware MT8365 Mobile applications / Mobile firmware & hardware MT8735A Mobile applications / Mobile firmware & hardware MT8735B Mobile applications / Mobile firmware & hardware MT8765 Mobile applications / Mobile firmware & hardware MT8766 Mobile applications / Mobile firmware & hardware MT8786 Mobile applications / Mobile firmware & hardware MT8789 Mobile applications / Mobile firmware & hardware MT6580 Mobile applications / Mobile firmware & hardware MT5522 Mobile applications / Mobile firmware & hardware MT5527 Mobile applications / Mobile firmware & hardware MT5597 Mobile applications / Mobile firmware & hardware MT5598 Mobile applications / Mobile firmware & hardware MT5599 Mobile applications / Mobile firmware & hardware MT8186 Mobile applications / Mobile firmware & hardware MT9256 Mobile applications / Mobile firmware & hardware MT9285 Mobile applications / Mobile firmware & hardware MT9286 Mobile applications / Mobile firmware & hardware MT9288 Mobile applications / Mobile firmware & hardware MT9629 Mobile applications / Mobile firmware & hardware MT9631 Mobile applications / Mobile firmware & hardware MT9632 Mobile applications / Mobile firmware & hardware MT9670 Mobile applications / Mobile firmware & hardware MT9675 Mobile applications / Mobile firmware & hardware MT9685 Mobile applications / Mobile firmware & hardware MT9688 Mobile applications / Mobile firmware & hardware MT9931 Mobile applications / Mobile firmware & hardware MT9950 Mobile applications / Mobile firmware & hardware MT8184 Mobile applications / Mobile firmware & hardware
Vendor	MediaTek

Security Bulletin

This security bulletin contains information about 21 vulnerabilities.

1) Memory corruption

EUVDB-ID: #VU72975

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0658

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a missing bounds check within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Memory corruption

EUVDB-ID: #VU72984

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0671

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a missing bounds check within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Memory corruption

EUVDB-ID: #VU72983

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0670

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a use after free within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Use After Free

EUVDB-ID: #VU72982

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0669

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a use after free within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9686: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Improper Check or Handling of Exceptional Conditions

EUVDB-ID: #VU72981

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0668

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to incorrect error handling within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9686: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Use After Free

EUVDB-ID: #VU72980

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0667

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a use after free within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9686: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Out-of-bounds read

EUVDB-ID: #VU72979

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0666

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local privileged application to gain access to sensitive information.

The vulnerability exists due to an incorrect bounds check within apusys. A local privileged application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9686: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Out-of-bounds read

EUVDB-ID: #VU72978

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0665

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local privileged application to gain access to sensitive information.

The vulnerability exists due to an incorrect bounds check within apusys. A local privileged application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9686: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Memory corruption

EUVDB-ID: #VU72977

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0664

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a use after free within ccu. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6873: All versions

MT6877: All versions

MT6885: All versions

MT6889: All versions

MT8183: All versions

MT8385: All versions

MT8768: All versions

MT8788: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Out-of-bounds read

EUVDB-ID: #VU72976

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0659

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local privileged application to gain access to sensitive information.

The vulnerability exists due to an incorrect bounds check within apusys. A local privileged application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Stack-based buffer overflow

EUVDB-ID: #VU72974

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0657

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a stack within apusys. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Information Exposure

EUVDB-ID: #VU72964

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0672

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing permission check within Browser app. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6731: All versions

MT6732: All versions

MT6735: All versions

MT6737: All versions

MT6739: All versions

MT6750: All versions

MT6750S: All versions

MT6752: All versions

MT6753: All versions

MT6755: All versions

MT6755S: All versions

MT6757: All versions

MT6757C: All versions

MT6757CD: All versions

MT6757CH: All versions

MT6758: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6769: All versions

MT6771: All versions

MT6779: All versions

MT6781: All versions

MT6785: All versions

MT6795: All versions

MT6797: All versions

MT6799: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8185: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8735A: All versions

MT8735B: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Use After Free

EUVDB-ID: #VU72973

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0656

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a use after free within edma driver. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Memory corruption

EUVDB-ID: #VU72972

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0655

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to an incorrect bounds check within mdlactl driver. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

15) Memory corruption

EUVDB-ID: #VU72971

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0629

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a use after free within mdlactl driver. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6873: All versions

MT6875: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8195: All versions

MT8791: All versions

MT8797: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9686: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Out-of-bounds read

EUVDB-ID: #VU72970

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0624

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a heap buffer overflow within flv extractor. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6735: All versions

MT6737: All versions

MT6739: All versions

MT6750S: All versions

MT6753: All versions

MT6755S: All versions

MT6757: All versions

MT6757C: All versions

MT6757CD: All versions

MT6757CH: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8185: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8735A: All versions

MT8735B: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

17) Out-of-bounds read

EUVDB-ID: #VU72969

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0623

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to an integer overflow within asf extractor. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT5522: All versions

MT5527: All versions

MT5597: All versions

MT5598: All versions

MT5599: All versions

MT6580: All versions

MT6735: All versions

MT6737: All versions

MT6739: All versions

MT6750S: All versions

MT6753: All versions

MT6755S: All versions

MT6757: All versions

MT6757C: All versions

MT6757CD: All versions

MT6757CH: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8185: All versions

MT8186: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

MT9256: All versions

MT9285: All versions

MT9286: All versions

MT9288: All versions

MT9629: All versions

MT9631: All versions

MT9632: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9670: All versions

MT9675: All versions

MT9685: All versions

MT9686: All versions

MT9688: All versions

MT9931: All versions

MT9950: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Out-of-bounds read

EUVDB-ID: #VU72968

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0622

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a heap buffer overflow within asf extractor. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT5522: All versions

MT5527: All versions

MT5597: All versions

MT5598: All versions

MT5599: All versions

MT6580: All versions

MT6735: All versions

MT6737: All versions

MT6739: All versions

MT6750S: All versions

MT6753: All versions

MT6755S: All versions

MT6757: All versions

MT6757C: All versions

MT6757CD: All versions

MT6757CH: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8185: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

MT9256: All versions

MT9285: All versions

MT9286: All versions

MT9288: All versions

MT9629: All versions

MT9631: All versions

MT9632: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9670: All versions

MT9675: All versions

MT9685: All versions

MT9686: All versions

MT9688: All versions

MT9931: All versions

MT9950: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Out-of-bounds read

EUVDB-ID: #VU72967

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0621

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to an integer overflow within asf extractor. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT5522: All versions

MT5527: All versions

MT5597: All versions

MT5598: All versions

MT5599: All versions

MT6580: All versions

MT6735: All versions

MT6737: All versions

MT6739: All versions

MT6750S: All versions

MT6753: All versions

MT6755S: All versions

MT6757: All versions

MT6757C: All versions

MT6757CD: All versions

MT6757CH: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8184: All versions

MT8185: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

MT9256: All versions

MT9285: All versions

MT9286: All versions

MT9288: All versions

MT9629: All versions

MT9631: All versions

MT9632: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9670: All versions

MT9675: All versions

MT9685: All versions

MT9686: All versions

MT9688: All versions

MT9931: All versions

MT9950: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Out-of-bounds read

EUVDB-ID: #VU72966

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0620

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a heap buffer overflow within asf extractor. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT5522: All versions

MT5527: All versions

MT5597: All versions

MT5598: All versions

MT5599: All versions

MT6580: All versions

MT6735: All versions

MT6737: All versions

MT6739: All versions

MT6750S: All versions

MT6753: All versions

MT6755S: All versions

MT6757: All versions

MT6757C: All versions

MT6757CD: All versions

MT6757CH: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8185: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

MT9256: All versions

MT9285: All versions

MT9286: All versions

MT9288: All versions

MT9629: All versions

MT9631: All versions

MT9632: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9669: All versions

MT9670: All versions

MT9675: All versions

MT9685: All versions

MT9686: All versions

MT9688: All versions

MT9931: All versions

MT9950: All versions

MT9970: All versions

MT9980: All versions

MT9981: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

21) Out-of-bounds read

EUVDB-ID: #VU72965

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0619

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within ape extractor. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6758: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6769: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT6795: All versions

MT6797: All versions

MT6799: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8163: All versions

MT8167: All versions

MT8167S: All versions

MT8168: All versions

MT8173: All versions

MT8175: All versions

MT8183: All versions

MT8185: All versions

MT8195: All versions

MT8321: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8765: All versions

MT8766: All versions

MT8768: All versions

MT8786: All versions

MT8788: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

External links

http://corp.mediatek.com/product-security-bulletin/November-2021

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.