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CVE-2021-43539

UNKNOWN
Published 2021-12-08T21:20:15
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No CVSS data available

Description

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Mozilla

Thunderbird

Affected Versions:

unspecified
Mozilla

Firefox ESR

Affected Versions:

unspecified
Mozilla

Firefox

Affected Versions:

unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-cx8r-rrrj-cfxg

Advisory Details

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-43539
WEB https://bugzilla.mozilla.org/show_bug.cgi?id=1739683
WEB https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
WEB https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
WEB https://security.gentoo.org/glsa/202202-03
WEB https://security.gentoo.org/glsa/202208-14
WEB https://www.debian.org/security/2021/dsa-5026
WEB https://www.debian.org/security/2022/dsa-5034
WEB https://www.mozilla.org/security/advisories/mfsa2021-52
WEB https://www.mozilla.org/security/advisories/mfsa2021-53
WEB https://www.mozilla.org/security/advisories/mfsa2021-54

Advisory provided by GitHub Security Advisory Database. Published: December 9, 2021, Modified: March 17, 2022

References

https://www.mozilla.org/security/advisories/mfsa2021-53/
https://www.mozilla.org/security/advisories/mfsa2021-54/
https://www.mozilla.org/security/advisories/mfsa2021-52/
https://bugzilla.mozilla.org/show_bug.cgi?id=1739683
https://www.debian.org/security/2021/dsa-5026
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
https://www.debian.org/security/2022/dsa-5034
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
https://security.gentoo.org/glsa/202202-03
https://security.gentoo.org/glsa/202208-14
Published: 2021-12-08T21:20:15
Last Modified: 2024-08-04T04:03:06.894Z
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