{"id":"ALSA-2023:5309","summary":"Important: libwebp security update","details":"The libwebp packages provide a library and tools for the WebP graphics format. WebP is an image format with a lossy compression of digital photographic images. WebP consists of a codec based on the VP8 format, and a container based on the Resource Interchange File Format (RIFF). Webmasters, web developers and browser developers can use WebP to compress, archive, and distribute digital images more efficiently.\n\nSecurity Fix(es):\n\n* libwebp: Heap buffer overflow in WebP Codec (CVE-2023-4863)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-02-04T03:15:02.196989Z","published":"2023-09-20T00:00:00Z","related":["CVE-2023-4863"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:5309"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2023-4863"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2238431"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2023-5309.html"}],"affected":[{"package":{"name":"libwebp","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwebp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0-8.el8_8.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:5309.json"}},{"package":{"name":"libwebp-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwebp-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0-8.el8_8.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:5309.json"}}],"schema_version":"1.7.3"}