CVE-2023-6862 Information

Description

A use-after-free was identified in the nsDNSService::Init. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1868042 https://www.mozilla.org/security/advisories/mfsa2023-54/ https://www.mozilla.org/security/advisories/mfsa2023-55/ https://www.debian.org/security/2023/dsa-5581