{"id":"CVE-2023-6277","title":"Libtiff: out-of-memory in tiffopen via a craft file","summary":"An out-of-memory flaw was found in libtiff. Passing a crafted tiff file to TIFFOpen() API may allow a remote attacker to cause a denial of service via a craft input with size smaller than 379 KB.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-400"],"vendor":"Red Hat","product":"libtiff","affected":["libtiff","compat-libtiff3","libtiff","compat-libtiff3 (all versions)","libtiff (all versions)","libtiff (all versions)"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2025-10-17T17:20:31.042625Z"},"exploitAvailable":true,"published":"2023-11-24","updated":"2026-11-05","sourceUpdated":"2026-11-05T11:36:55.727Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-6277","references":[{"url":"https://access.redhat.com/security/cve/CVE-2023-6277"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2251311","label":"RHBZ#2251311"},{"url":"https://gitlab.com/libtiff/libtiff/-/issues/614"},{"url":"https://gitlab.com/libtiff/libtiff/-/merge_requests/545"}],"tags":["cve.org","exploit-available"],"epss":0.01825,"epssPercentile":0.78873,"ingestedAt":"2026-11-05T21:36:00.806Z","slug":"CVE-2023-6277","body":"## Overview\n\nAn out-of-memory flaw was found in libtiff. Passing a crafted tiff file to TIFFOpen() API may allow a remote attacker to cause a denial of service via a craft input with size smaller than 379 KB.\n\n## Affected\n\n- `libtiff`\n- `compat-libtiff3`\n- `libtiff`\n- `compat-libtiff3 (all versions)`\n- `libtiff (all versions)`\n- `libtiff (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.4,"exploitation":12,"ransomware":0},"changes":[]}