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Vulnerability DatabaseCVE-2021-0994
CVE-2021-0994:
NixOS vulnerability analysis and mitigation
Overview
CVE-2021-0994 was included in the December 2021 security update for Red Hat Enterprise Linux. The vulnerability affects Mozilla Thunderbird, which is a standalone mail and newsgroup client (Red Hat Advisory).
Technical details
The vulnerability was addressed in Thunderbird version 78.9.0. The update includes fixes for multiple security issues including texture upload into an unbound backing buffer that resulted in an out-of-bound read, memory safety bugs, internal network host probing vulnerabilities, and extension spoofing issues (Red Hat Advisory).
Impact
The vulnerability was rated as having an Important security impact by Red Hat Product Security. The issue could potentially affect system confidentiality and security (Red Hat Advisory).
Mitigation and workarounds
Red Hat has released updated packages to address this vulnerability. Users are advised to upgrade to Thunderbird version 78.9.0. All running instances of Thunderbird must be restarted for the update to take effect (Red Hat Advisory).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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