Vulnerability CVE-2023-6858
Published: 2023-12-19

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.

 References:
https://bugzilla.mozilla.org/show_bug.cgi?id=1826791
https://www.mozilla.org/security/advisories/mfsa2023-54/
https://www.mozilla.org/security/advisories/mfsa2023-55/
https://www.mozilla.org/security/advisories/mfsa2023-56/
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