Vulnerability Description
Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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 < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 118 |
| Mozilla | Firefox Esr | < 115.3 |
| Mozilla | Thunderbird | < 115.3 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836353%2C1842674%2C1843824%2C18Broken LinkIssue TrackingPermissions Required
- https://lists.debian.org/debian-lts-announce/2023/09/msg00034.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00015.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5506Third Party Advisory
- https://www.debian.org/security/2023/dsa-5513Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-41/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-42/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-43/Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836353%2C1842674%2C1843824%2C18Broken LinkIssue TrackingPermissions Required
- https://lists.debian.org/debian-lts-announce/2023/09/msg00034.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00015.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5506Third Party Advisory
- https://www.debian.org/security/2023/dsa-5513Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-41/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-42/Vendor Advisory
FAQ
What is CVE-2023-5176?
CVE-2023-5176 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could ...
How severe is CVE-2023-5176?
CVE-2023-5176 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-5176?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Debian Debian Linux.