CVE-2021-29987

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-29987
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1716129 Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-33/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-36/ Vendor Advisory
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
History

16 Mar 2022, 15:13

Type Values Removed Values Added
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1716129 - Issue Tracking, Permissions Required, Vendor Advisory (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1716129 - Issue Tracking, Vendor Advisory
References (GENTOO) https://security.gentoo.org/glsa/202202-03 - (GENTOO) https://security.gentoo.org/glsa/202202-03 - Third Party Advisory

22 Feb 2022, 01:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202202-03 -

25 Aug 2021, 18:16

Type Values Removed Values Added
CWE CWE-307
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.5
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-33/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-33/ - Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-36/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-36/ - Vendor Advisory
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1716129 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1716129 - Issue Tracking, Permissions Required, Vendor Advisory

17 Aug 2021, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-17 20:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-29987

Mitre link : CVE-2021-29987

CVE.ORG link : CVE-2021-29987

JSON object : View

Products Affected

linux

  • linux_kernel

mozilla

  • thunderbird
  • firefox
CWE
CWE-307

Improper Restriction of Excessive Authentication Attempts