Multiple vulnerabilities in MediaTek chipsets

Published: 2021-09-02 | Updated: 2023-03-07

Risk	High
Patch available	YES
Number of vulnerabilities	15
CVE-ID	CVE-2021-0423 CVE-2021-0660 CVE-2021-0612 CVE-2021-0611 CVE-2021-0610 CVE-2021-0425 CVE-2021-0424 CVE-2021-0422 CVE-2021-0681 CVE-2021-0421 CVE-2021-32487 CVE-2021-32486 CVE-2021-32485 CVE-2021-32484 CVE-2021-0680
CWE-ID	CWE-200 CWE-703 CWE-416 CWE-190 CWE-400 CWE-125 CWE-122
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	MT6580 Mobile applications / Mobile firmware & hardware MT6582E Mobile applications / Mobile firmware & hardware MT6582H Mobile applications / Mobile firmware & hardware MT6582T Mobile applications / Mobile firmware & hardware MT6582W Mobile applications / Mobile firmware & hardware MT6582_90 Mobile applications / Mobile firmware & hardware MT6589 Mobile applications / Mobile firmware & hardware MT6589TD Mobile applications / Mobile firmware & hardware MT6592E Mobile applications / Mobile firmware & hardware MT6592H Mobile applications / Mobile firmware & hardware MT6592T Mobile applications / Mobile firmware & hardware MT6592W Mobile applications / Mobile firmware & hardware MT6592_90 Mobile applications / Mobile firmware & hardware MT6595 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 MT6765 Mobile applications / Mobile firmware & hardware MT6768 Mobile applications / Mobile firmware & hardware MT6769 Mobile applications / Mobile firmware & hardware MT6771 Mobile applications / Mobile firmware & hardware MT6795 Mobile applications / Mobile firmware & hardware MT6797 Mobile applications / Mobile firmware & hardware MT6799 Mobile applications / Mobile firmware & hardware MT6833 Mobile applications / Mobile firmware & hardware MT6762D Mobile applications / Mobile firmware & hardware MT6762M Mobile applications / Mobile firmware & hardware MT6765T Mobile applications / Mobile firmware & hardware MT6767 Mobile applications / Mobile firmware & hardware MT6769T Mobile applications / Mobile firmware & hardware MT6769Z Mobile applications / Mobile firmware & hardware MT6783 Mobile applications / Mobile firmware & hardware MT6785T Mobile applications / Mobile firmware & hardware MT8167 Mobile applications / Mobile firmware & hardware MT8168 Mobile applications / Mobile firmware & hardware MT8173 Mobile applications / Mobile firmware & hardware MT8183 Mobile applications / Mobile firmware & hardware MT6779 Hardware solutions / Firmware MT6785 Hardware solutions / Firmware MT6853 Hardware solutions / Firmware MT6853T Hardware solutions / Firmware 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
Vendor	MediaTek

Security Bulletin

This security bulletin contains information about 15 vulnerabilities.

1) Information Exposure

EUVDB-ID: #VU72938

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-2021-0423

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 uninitialized data within memory management driver. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Improper Check or Handling of Exceptional Conditions

EUVDB-ID: #VU72944

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-2021-0660

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

Exploit availability: No

Description

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

The vulnerability exists due to incorrect error handling within ccu. A local privileged application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6779: All versions

MT6853: All versions

MT6873: All versions

MT6885: All versions

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Use After Free

EUVDB-ID: #VU72943

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-2021-0612

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 m4u. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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: #VU72942

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-2021-0611

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 m4u. A local privileged application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Integer overflow

EUVDB-ID: #VU72941

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0610

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to an integer overflow within memory management driver. A local application can execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Information Exposure

EUVDB-ID: #VU72940

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-2021-0425

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 improper input validation within memory management driver. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Resource exhaustion

EUVDB-ID: #VU72939

Risk: Low

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

CVE-ID: CVE-2021-0424

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check within memory management driver. A local application can perform service disruption.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Resource exhaustion

EUVDB-ID: #VU72937

Risk: Low

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

CVE-ID: CVE-2021-0422

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check within memory management driver. A local application can perform service disruption.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Information Exposure

EUVDB-ID: #VU72930

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-2021-0681

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 system properties. 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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: #VU72936

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-2021-0421

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 memory management driver. A local application can gain access to sensitive information.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6582E: All versions

MT6582H: All versions

MT6582T: All versions

MT6582W: All versions

MT6582_90: All versions

MT6589: All versions

MT6589TD: All versions

MT6592E: All versions

MT6592H: All versions

MT6592T: All versions

MT6592W: All versions

MT6592_90: All versions

MT6595: All 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

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

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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) Heap-based Buffer Overflow

EUVDB-ID: #VU72935

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32487

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6761: All versions

MT6762: All versions

MT6762D: All versions

MT6762M: All versions

MT6763: All versions

MT6765: All versions

MT6765T: All versions

MT6767: All versions

MT6768: All versions

MT6769: All versions

MT6769T: All versions

MT6769Z: All versions

MT6771: All versions

MT6779: All versions

MT6783: All versions

MT6785: All versions

MT6785T: All versions

CPE2.3

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

12) Heap-based Buffer Overflow

EUVDB-ID: #VU72934

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32486

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6761: All versions

MT6762: All versions

MT6762D: All versions

MT6762M: All versions

MT6763: All versions

MT6765: All versions

MT6765T: All versions

MT6767: All versions

MT6768: All versions

MT6769: All versions

MT6769T: All versions

MT6769Z: All versions

MT6771: All versions

MT6779: All versions

MT6783: All versions

MT6785: All versions

MT6785T: All versions

CPE2.3

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

13) Heap-based Buffer Overflow

EUVDB-ID: #VU72933

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32485

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6761: All versions

MT6762: All versions

MT6762D: All versions

MT6762M: All versions

MT6763: All versions

MT6765: All versions

MT6765T: All versions

MT6767: All versions

MT6768: All versions

MT6769: All versions

MT6769T: All versions

MT6769Z: All versions

MT6771: All versions

MT6779: All versions

MT6783: All versions

MT6785: All versions

MT6785T: All versions

CPE2.3

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

14) Heap-based Buffer Overflow

EUVDB-ID: #VU72932

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32484

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.

Mitigation

Install security update from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6761: All versions

MT6762: All versions

MT6762D: All versions

MT6762M: All versions

MT6763: All versions

MT6765: All versions

MT6765T: All versions

MT6767: All versions

MT6768: All versions

MT6769: All versions

MT6769T: All versions

MT6769Z: All versions

MT6771: All versions

MT6779: All versions

MT6783: All versions

MT6785: All versions

MT6785T: All versions

CPE2.3

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

15) Information Exposure

EUVDB-ID: #VU72931

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-2021-0680

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 system properties. 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

MT6739: All versions

MT6750S: All versions

MT6755S: All versions

MT6757CD: 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

MT8167: All versions

MT8168: All versions

MT8173: All versions

MT8183: All versions

CPE2.3

External links

http://corp.mediatek.com/product-security-bulletin/September-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.