CVE - CVE-2021-43539

CVE-ID
CVE-2021-43539	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
DEBIAN:DSA-5026 URL:https://www.debian.org/security/2021/dsa-5026 DEBIAN:DSA-5034 URL:https://www.debian.org/security/2022/dsa-5034 GENTOO:GLSA-202202-03 URL:https://security.gentoo.org/glsa/202202-03 GENTOO:GLSA-202208-14 URL:https://security.gentoo.org/glsa/202208-14 MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1739683 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1739683 MISC:https://www.mozilla.org/security/advisories/mfsa2021-52/ URL:https://www.mozilla.org/security/advisories/mfsa2021-52/ MISC:https://www.mozilla.org/security/advisories/mfsa2021-53/ URL:https://www.mozilla.org/security/advisories/mfsa2021-53/ MISC:https://www.mozilla.org/security/advisories/mfsa2021-54/ URL:https://www.mozilla.org/security/advisories/mfsa2021-54/ MLIST:[debian-lts-announce] 20211229 [SECURITY] [DLA 2863-1] firefox-esr security update URL:https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html MLIST:[debian-lts-announce] 20220104 [SECURITY] [DLA 2874-1] thunderbird security update URL:https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
Assigning CNA
Mozilla Corporation
Date Record Created
20211108	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20211108)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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