Vulnerability Details : CVE-2023-5171
During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
Vulnerability category: Memory Corruption
Products affected by CVE-2023-5171
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-5171
1.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-5171
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2023-5171
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-5171
-
https://lists.debian.org/debian-lts-announce/2023/09/msg00034.html
[SECURITY] [DLA 3587-1] firefox-esr security updateMailing List;Patch;Third Party Advisory
-
https://www.debian.org/security/2023/dsa-5513
Debian -- Security Information -- DSA-5513-1 thunderbirdThird Party Advisory
-
https://www.debian.org/security/2023/dsa-5506
Debian -- Security Information -- DSA-5506-1 firefox-esrPatch;Third Party Advisory
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https://bugzilla.mozilla.org/show_bug.cgi?id=1851599
Access DeniedIssue Tracking;Permissions Required
-
https://www.mozilla.org/security/advisories/mfsa2023-42/
Security Vulnerabilities fixed in Firefox ESR 115.3 — MozillaVendor Advisory
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https://www.mozilla.org/security/advisories/mfsa2023-43/
Security Vulnerabilities fixed in Thunderbird 115.3 — MozillaVendor Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AY642Z6JZODQJE7Z62CFREVUHEGCXGPD/
[SECURITY] Fedora 39 Update: firefox-118.0.1-4.fc39 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2023/10/msg00015.html
[SECURITY] [DLA 3601-1] thunderbird security updateMailing List;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2023-41/
Security Vulnerabilities fixed in Firefox 118 — MozillaVendor Advisory
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