DEBIAN-CVE-2023-5171

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2023-5171
Published: 27 Sept 2023, 15:19
Last modified:20 Nov 2025, 10:16

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Sept 2023, 15:19
Published
Vulnerability first disclosed
20 Nov 2025, 10:16
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

Affected Systems

  • debian•firefox-esr

    < 115.3.0esr-1~deb11u1 | < 115.3.0esr-1~deb12u1 | < 115.3.0esr-1 | < 115.3.0esr-1

  • debian•thunderbird

    < 1:115.3.1-1~deb11u1 | < 1:115.3.1-1~deb12u1 | < 1:115.3.0-1 | < 1:115.3.0-1

References (1)