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CVE-2023-6873

Date: December 19, 2023

Memory safety bugs present in Firefox 120. 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 < 121.

Language: C++

Severity Score

Related Resources (9)

https://www.mozilla.org/security/advisories/mfsa2023-56/
https://security-tracker.debian.org/tracker/CVE-2023-6873
https://people.canonical.com/~ubuntu-security/cve/CVE-2023-6873
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
https://www.debian.org/security/2023/dsa-5582
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1855327%2C1862089%2C1862723
https://nvd.nist.gov/vuln/detail/CVE-2023-6873
https://security.gentoo.org/glsa/202401-10
https://www.mend.io/vulnerability-database/CVE-2023-6873

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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