Debian update for chromium

1) Use-after-free

EUVDB-ID: #VU52232

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-2021-21201

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the permissions component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

2) Improperly implemented security check for standard

EUVDB-ID: #VU52245

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21215

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in Autofill in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

3) Use-after-free

EUVDB-ID: #VU52372

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-2021-21226

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the navigation component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

4) Out-of-bounds write

EUVDB-ID: #VU52374

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-2021-21225

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the V8 browser engine in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

5) Type Confusion

EUVDB-ID: #VU52371

Risk: Critical

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-2021-21224

CWE-ID: CWE-843 - Type confusion

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error within the V8 browser engine in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

6) Integer overflow

EUVDB-ID: #VU52373

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-2021-21223

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in V8 browser engine in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

7) Heap-based buffer overflow

EUVDB-ID: #VU52370

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-2021-21222

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in V8 browser engine. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

8) Input validation error

EUVDB-ID: #VU52250

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-2021-21221

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input in Mojo in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into opening it and execute arbitrary code on the system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

9) Use of uninitialized resource

EUVDB-ID: #VU52249

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21219

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of uninitialized resources in PDFium in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

10) Use of uninitialized resource

EUVDB-ID: #VU52248

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21218

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of uninitialized resources in PDFium in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

11) Use of uninitialized resource

EUVDB-ID: #VU52247

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21217

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of uninitialized resources in PDFium in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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) Improperly implemented security check for standard

EUVDB-ID: #VU52246

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21216

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in Autofill in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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) Use-after-free

EUVDB-ID: #VU52244

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21214

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within Network API in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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) Use-after-free

EUVDB-ID: #VU52233

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-2021-21202

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the extensions component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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) Use-after-free

EUVDB-ID: #VU52243

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21213

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within WebMIDI in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

16) Spoofing attack

EUVDB-ID: #VU52242

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21212

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to insufficient validation of user-supplied input in Network Config UI in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and spoof web page content.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

17) Improperly implemented security check for standard

EUVDB-ID: #VU52241

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21211

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in Navigation in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

18) Improperly implemented security check for standard

EUVDB-ID: #VU52240

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21210

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in Network in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

19) Improperly implemented security check for standard

EUVDB-ID: #VU52239

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21209

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in storage in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

20) Input validation error

EUVDB-ID: #VU52238

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21208

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input in QR scanner in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

21) Use-after-free

EUVDB-ID: #VU52237

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21207

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within IndexedDB in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

22) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU52236

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-2021-21205

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient policy enforcement in navigation in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and compromise the affected system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

23) Use-after-free

EUVDB-ID: #VU52235

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-2021-21204

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Blink component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.

24) Use-after-free

EUVDB-ID: #VU52234

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-2021-21203

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Blink component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update chromium package to version 90.0.4430.85-1~deb10u1.

Vulnerable software versions

chromium (Debian package): 76.0.3809.100-1~deb10u1 - 89.0.4389.114-1~deb10u1

External links

http://www.debian.org/security/2021/dsa-4906

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.