CVE-2023-4577

Description

When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

References

https://www.mozilla.org/security/advisories/mfsa2023-38/

https://www.mozilla.org/security/advisories/mfsa2023-36/

https://www.mozilla.org/security/advisories/mfsa2023-34/

https://bugzilla.mozilla.org/show_bug.cgi?id=1847397

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3