CVE-2021-29986

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-29986
A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

8.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 Exploit Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://security.gentoo.org/glsa/202208-14 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-33/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-34/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-35/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-36/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 Exploit Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://security.gentoo.org/glsa/202208-14 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-33/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-34/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-35/ 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:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
History

21 Nov 2024, 06:02

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 - Exploit, Issue Tracking, Vendor Advisory () https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 - Exploit, Issue Tracking, Vendor Advisory
References () https://security.gentoo.org/glsa/202202-03 - Third Party Advisory () https://security.gentoo.org/glsa/202202-03 - Third Party Advisory
References () https://security.gentoo.org/glsa/202208-14 - Third Party Advisory () https://security.gentoo.org/glsa/202208-14 - Third Party Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-33/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-33/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-34/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-34/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-35/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-35/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-36/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-36/ - Vendor Advisory

10 Aug 2022, 20:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202208-14 -

16 Mar 2022, 15:06

Type Values Removed Values Added
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, 18:13

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CWE CWE-362
CVSS v2 : unknown
v3 : unknown 		v2 : 6.8
v3 : 8.1
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-34/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-34/ - Vendor Advisory
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 - Issue Tracking, Permissions Required, Vendor Advisory
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://www.mozilla.org/security/advisories/mfsa2021-35/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-35/ - Vendor Advisory

17 Aug 2021, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-17 20:15

Updated : 2024-11-21 06:02

NVD link : CVE-2021-29986

Mitre link : CVE-2021-29986

CVE.ORG link : CVE-2021-29986

JSON object : View

Products Affected

mozilla

  • firefox_esr
  • firefox
  • thunderbird

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')