{"id":"AZL-40745","summary":"CVE-2011-2501 affecting package syslinux for versions less than 6.04-11","details":"The png_format_buffer function in pngerror.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data.  NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.","modified":"2026-09-09T05:29:25Z","published":"2011-07-17T20:55:01Z","upstream":["CVE-2011-2501"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2501"}],"affected":[{"package":{"name":"syslinux","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/syslinux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.04-11"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-40745.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}