{"api_version":"1","generated_at":"2026-04-22T23:30:22+00:00","cve":"CVE-2023-1999","urls":{"html":"https://cve.report/CVE-2023-1999","api":"https://cve.report/api/cve/CVE-2023-1999.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-1999","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-1999"},"summary":{"title":"CVE-2023-1999","description":"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. ","state":"PUBLIC","assigner":"security@google.com","published_at":"2023-06-20 12:15:00","updated_at":"2023-09-17 09:15:00"},"problem_types":["CWE-415","CWE-416"],"metrics":[],"references":[{"url":"https://chromium.googlesource.com/webm/libwebp","name":"https://chromium.googlesource.com/webm/libwebp","refsource":"MISC","tags":[],"title":"webm/libwebp - Git at Google","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/202309-05","name":"https://security.gentoo.org/glsa/202309-05","refsource":"MISC","tags":[],"title":"WebP: Multiple vulnerabilities (GLSA 202309-05) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-1999","name":"CVE Program 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