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MFSA2023-42 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.3 (CVE-2023-5171)

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MFSA2023-42 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.3 (CVE-2023-5171)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
09/26/2023
Created
09/28/2023
Added
09/27/2023
Modified
01/28/2025

Description

During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

Solution(s)

  • mozilla-firefox-esr-upgrade-115_3

References

  • https://attackerkb.com/topics/cve-2023-5171
  • CVE - 2023-5171
  • http://www.mozilla.org/security/announce/2023/mfsa2023-42.html
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