CVE - CVE-2021-43535

CVE-ID
CVE-2021-43535	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.
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 MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1667102 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1667102 MISC:https://www.mozilla.org/security/advisories/mfsa2021-43/ URL:https://www.mozilla.org/security/advisories/mfsa2021-43/ MISC:https://www.mozilla.org/security/advisories/mfsa2021-49/ URL:https://www.mozilla.org/security/advisories/mfsa2021-49/ MISC:https://www.mozilla.org/security/advisories/mfsa2021-50/ URL:https://www.mozilla.org/security/advisories/mfsa2021-50/ 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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