CVE-2023-5171

Advisory lineage Upstream: 0 Downstream: 31
Modified
Published: 27 Sept 2023, 14:13
Last modified:13 Feb 2025, 17:19

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.26% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Sept 2023, 14:13
Published
Vulnerability first disclosed
13 Feb 2025, 17:19
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.26%• Percentile: 49%

Techniques & Countermeasures

  • CWE-416•Use After Free

    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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • debian•debian_linux

    10.0 | 11.0 | 12.0

  • fedoraproject•fedora

    39

  • Unknown•Firefox

    ≥ unspecified, < 118 | < 118

  • mozilla•firefox esr

    ≥ unspecified, < 115.3 | < 115.3

  • mozilla•thunderbird

    ≥ unspecified, < 115.3 | < 115.3

References (9)