{"id":"ALSA-2021:4231","summary":"Moderate: 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: out-of-bounds read in WebPMuxCreateInternal (CVE-2018-25009)\n\n* libwebp: out-of-bounds read in ApplyFilter() (CVE-2018-25010)\n\n* libwebp: out-of-bounds read in WebPMuxCreateInternal() (CVE-2018-25012)\n\n* libwebp: out-of-bounds read in ShiftBytes() (CVE-2018-25013)\n\n* libwebp: use of uninitialized value in ReadSymbol() (CVE-2018-25014)\n\n* libwebp: out-of-bounds read in ChunkVerifyAndAssign() in mux/muxread.c (CVE-2020-36330)\n\n* libwebp: out-of-bounds read in ChunkAssignData() in mux/muxinternal.c (CVE-2020-36331)\n\n* libwebp: excessive memory allocation when reading a file (CVE-2020-36332)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","modified":"2026-02-04T04:20:29.337632Z","published":"2021-11-09T08:47:24Z","related":["CVE-2018-25009","CVE-2018-25010","CVE-2018-25012","CVE-2018-25013","CVE-2018-25014","CVE-2020-36330","CVE-2020-36331","CVE-2020-36332"],"references":[{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2021-4231.html"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2018-25009"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2018-25010"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2018-25012"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2018-25013"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2018-25014"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2020-36330"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2020-36331"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2020-36332"}],"affected":[{"package":{"name":"libwebp","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwebp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0-5.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:4231.json"}},{"package":{"name":"libwebp-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwebp-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0-5.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:4231.json"}}],"schema_version":"1.7.3"}