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CVE-2023-6864

Date: December 19, 2023

Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

Language: C++

Severity Score

Related Resources (12)

https://www.mozilla.org/security/advisories/mfsa2023-56/
https://www.debian.org/security/2023/dsa-5581
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
https://www.debian.org/security/2023/dsa-5582
https://nvd.nist.gov/vuln/detail/CVE-2023-6864
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html
https://security-tracker.debian.org/tracker/CVE-2023-6864
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1736385%2C1810805%2C1846328%2C1856090%2C1858033%2C1858509%2C1862089%2C1862777%2C1864015
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-55/
https://www.mozilla.org/security/advisories/mfsa2023-54/
https://www.mend.io/vulnerability-database/CVE-2023-6864

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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