{"id":"UBUNTU-CVE-2025-64505","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":"2026-04-22T16:08:55.818372Z","published":"2025-11-25T00:15:00Z","related":["USN-7924-1","USN-8081-1"],"upstream":["CVE-2025-64505"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-64505"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-64505"},{"type":"REPORT","url":"https://github.com/pnggroup/libpng/security/advisories/GHSA-4952-h5wq-4m42"},{"type":"REPORT","url":"https://github.com/pnggroup/libpng/pull/748"},{"type":"REPORT","url":"https://github.com/pnggroup/libpng/commit/6a528eb5fd0dd7f6de1c39d30de0e41473431c37"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2025/11/22/1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7924-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8081-1"}],"affected":[{"package":{"name":"libpng","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libpng@1.2.50-1ubuntu2.14.04.3+esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.50-1ubuntu2.14.04.3+esm1"}]}],"versions":["1.2.49-4ubuntu1","1.2.49-5ubuntu1","1.2.50-1ubuntu1","1.2.50-1ubuntu2","1.2.50-1ubuntu2.14.04.1","1.2.50-1ubuntu2.14.04.2","1.2.50-1ubuntu2.14.04.3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro","binaries":[{"binary_name":"libpng12-0","binary_version":"1.2.50-1ubuntu2.14.04.3+esm1"},{"binary_version":"1.2.50-1ubuntu2.14.04.3+esm1","binary_name":"libpng3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libpng@1.2.54-1ubuntu1.1+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.54-1ubuntu1.1+esm2"}]}],"versions":["1.2.51-0ubuntu3","1.2.54-1","1.2.54-1ubuntu1","1.2.54-1ubuntu1.1","1.2.54-1ubuntu1.1+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"1.2.54-1ubuntu1.1+esm2","binary_name":"libpng12-0"},{"binary_name":"libpng3","binary_version":"1.2.54-1ubuntu1.1+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng1.6","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libpng1.6@1.6.20-2ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.20-2ubuntu0.1~esm2"}]}],"versions":["1.6.20-2","1.6.20-2ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libpng16-16","binary_version":"1.6.20-2ubuntu0.1~esm2"},{"binary_name":"libpng16-devtools","binary_version":"1.6.20-2ubuntu0.1~esm2"},{"binary_name":"libpng16-tools","binary_version":"1.6.20-2ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng1.6","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libpng1.6@1.6.34-1ubuntu0.18.04.2+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.34-1ubuntu0.18.04.2+esm1"}]}],"versions":["1.6.34-1","1.6.34-1ubuntu0.18.04.1","1.6.34-1ubuntu0.18.04.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libpng-tools","binary_version":"1.6.34-1ubuntu0.18.04.2+esm1"},{"binary_name":"libpng16-16","binary_version":"1.6.34-1ubuntu0.18.04.2+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng1.6","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libpng1.6@1.6.37-2ubuntu0.1~esm1?arch=source&distro=esm-infra/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.37-2ubuntu0.1~esm1"}]}],"versions":["1.6.37-1","1.6.37-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libpng-tools","binary_version":"1.6.37-2ubuntu0.1~esm1"},{"binary_name":"libpng16-16","binary_version":"1.6.37-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng1.6","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libpng1.6@1.6.37-3ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.37-3ubuntu0.1"}]}],"versions":["1.6.37-3build4","1.6.37-3build5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libpng-tools","binary_version":"1.6.37-3ubuntu0.1"},{"binary_name":"libpng16-16","binary_version":"1.6.37-3ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng1.6","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libpng1.6@1.6.43-5ubuntu0.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.43-5ubuntu0.1"}]}],"versions":["1.6.40-1","1.6.40-2","1.6.40-3","1.6.42-1","1.6.43-1","1.6.43-3","1.6.43-5build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libpng-tools","binary_version":"1.6.43-5ubuntu0.1"},{"binary_name":"libpng16-16t64","binary_version":"1.6.43-5ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}},{"package":{"name":"libpng1.6","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libpng1.6@1.6.50-1ubuntu0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.50-1ubuntu0.1"}]}],"versions":["1.6.47-1.1","1.6.48-1","1.6.49-1~exp1","1.6.50-1~exp1","1.6.50-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.6.50-1ubuntu0.1","binary_name":"libpng-tools"},{"binary_name":"libpng16-16t64","binary_version":"1.6.50-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64505.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}