8.8

CVE-2023-6862

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox ESR Version < 115.6
Mozilla ≫ Thunderbird Version < 115.6
Debian ≫ Debian Linux Version10.0
Debian ≫ Debian Linux Version11.0
Debian ≫ Debian Linux Version12.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.95% 0.566
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://security.gentoo.org/glsa/202401-10
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
Third Party Advisory
Mailing List
https://www.debian.org/security/2023/dsa-5582
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-55/
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html
Third Party Advisory
Mailing List
https://www.debian.org/security/2023/dsa-5581
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-54/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1868042
Issue Tracking
Permissions Required