Rapid7 Vulnerability & Exploit Database

MFSA2023-54 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.6 (CVE-2023-6858)

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MFSA2023-54 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.6 (CVE-2023-6858)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
12/19/2023
Created
12/21/2023
Added
12/20/2023
Modified
12/27/2023

Description

Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

Solution(s)

  • mozilla-firefox-esr-upgrade-115_6

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