{"id":"AZL-27181","summary":"CVE-2023-1999 affecting package libwebp for versions less than 1.3.2-1","details":"There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.","modified":"2026-04-01T05:09:00.179507Z","published":"2023-06-20T12:15:09Z","upstream":["CVE-2023-1999"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-1999"}],"affected":[{"package":{"name":"libwebp","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/libwebp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27181.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}