{"id":"CVE-2023-43786","title":"Libx11: stack exhaustion from infinite recursion in putsubimage()","summary":"A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-400"],"vendor":"Red Hat","product":"libXpm","affected":["libXpm < 3.5.17","libX11 (all versions)","libX11 (all versions)","libX11","libX11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-04-25T16:06:07.325768Z"},"exploitAvailable":true,"published":"2023-10-10","updated":"2026-11-07","sourceUpdated":"2026-11-07T11:31:57.214Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-43786","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:2145","label":"RHSA-2024:2145"},{"url":"https://access.redhat.com/errata/RHSA-2024:2973","label":"RHSA-2024:2973"},{"url":"https://access.redhat.com/security/cve/CVE-2023-43786"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2242253","label":"RHBZ#2242253"}],"tags":["cve.org","exploit-available"],"epss":0.00475,"epssPercentile":0.4131,"exploits":{"github":1,"githubRepos":["https://github.com/jfrog/jfrog-CVE-2023-43786-libX11_DoS"],"checkedAt":"2026-11-07T17:43:23.649Z"},"ingestedAt":"2026-11-07T12:16:41.116Z","slug":"CVE-2023-43786","body":"## Overview\n\nA vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.\n\n## Affected\n\n- `libXpm < 3.5.17`\n- `libX11 (all versions)`\n- `libX11 (all versions)`\n- `libX11`\n- `libX11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}