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CVE-2023-6212

Date: November 21, 2023

Memory safety bugs present in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4. 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 < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

Language: Objective-C

Severity Score

Related Resources (10)

https://security-tracker.debian.org/tracker/CVE-2023-6212
https://www.mozilla.org/security/advisories/mfsa2023-49/
https://www.debian.org/security/2023/dsa-5561
https://nvd.nist.gov/vuln/detail/CVE-2023-6212
https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
https://www.mozilla.org/security/advisories/mfsa2023-50/
https://www.mozilla.org/security/advisories/mfsa2023-52/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1658432%2C1820983%2C1829252%2C1856072%2C1856091%2C1859030%2C1860943%2C1862782
https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
https://www.mend.io/vulnerability-database/CVE-2023-6212

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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