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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-43535 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1667102 Issue Tracking  Permissions Required  Vendor Advisory 
https://bugzilla.mozilla.org/show_bug.cgi?id=1667102 Issue Tracking  Permissions Required  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List  Third Party Advisory 
https://www.debian.org/security/2021/dsa-5026 Third Party Advisory 
https://www.debian.org/security/2021/dsa-5026 Third Party Advisory 
https://www.debian.org/security/2022/dsa-5034 Issue Tracking  Third Party Advisory 
https://www.debian.org/security/2022/dsa-5034 Issue Tracking  Third Party Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-43/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-43/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-49/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-49/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-50/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-50/ Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-43535
NVD Published Date:
12/08/2021
NVD Last Modified:
11/21/2024
Source:
Mozilla Corporation