{"id":"AZL-70763","summary":"CVE-2025-64505 affecting package libpng for versions less than 1.6.51-1","details":"LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.","modified":"2026-04-01T05:22:30.249858Z","published":"2025-11-25T00:15:47Z","upstream":["CVE-2025-64505"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-64505"}],"affected":[{"package":{"name":"libpng","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/libpng"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.51-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-70763.json"}}],"schema_version":"1.7.5"}