Detections
Analytics

CVE-2023-6862

high

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.

References

https://www.debian.org/security/2023/dsa-5582

https://www.debian.org/security/2023/dsa-5581

https://security.gentoo.org/glsa/202401-10

https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html

https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html

https://www.mozilla.org/security/advisories/mfsa2023-55/

https://www.mozilla.org/security/advisories/mfsa2023-54/

https://bugzilla.mozilla.org/show_bug.cgi?id=1868042

Details

Source: Mitre, NVD

Published: 2023-12-19

Updated: 2024-02-02

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.01312