Home/CVE/The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that la
CVE

CVE-2023-6863

The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that la

The ShutdownObserver() was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

HIGH · CVSS 8.8 EPSS 0.00512
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
▤

Affected Products & Versions

4
mozilla firefox< 121.0
mozilla firefox esr< 115.6
mozilla thunderbird< 115.6
debian linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Dec 2023 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

29
msrcCVE-2023-6863
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:13519-1
suse-csafopenSUSE-SU-2024:13531-1
suse-csafSUSE-SU-2024:0044-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1868901Issue Tracking
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202401-10Third Party Advisory
https://www.debian.org/security/2023/dsa-5581Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-54/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-55/Vendor Advisory
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