Paper/Archive/CVE-2023-5174

CVE-2023-5174

Mozilla Firefox — If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting…

EPSS 1%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 68.2.682 × 2013.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. *This bug only affects Firefox on Windows when run in non-standard configurations (such as using `runas`). Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

Affected

ProductAffectedFixed inSource

Firefoxunspecified – < 118118CNA

Firefox ESRunspecified – < 115.3115.3CNA

Thunderbirdunspecified – < 115.3115.3CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.mozilla.org/show_bug.cgi?id=1848454 refmozilla.org/security/advisories/mfsa2023-41 refmozilla.org/security/advisories/mfsa2023-42 refmozilla.org/security/advisories/mfsa2023-43