{"id":"UBUNTU-CVE-2025-29476","details":"Buffer Overflow vulnerability in compress_chunk_fuzzer with oss-fuzz on commit 16450518afddcb3139de627157208e49bfef6987 in c-blosc2 v.2.17.0 and before.","modified":"2026-04-22T15:41:02.296693Z","published":"2025-04-04T18:15:00Z","upstream":["CVE-2025-29476"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-29476"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-29476"},{"type":"REPORT","url":"https://github.com/Blosc/c-blosc2/issues/656"},{"type":"REPORT","url":"https://github.com/Blosc/c-blosc2/pull/658"},{"type":"REPORT","url":"https://github.com/lmarch2/poc/blob/main/c-blosk2/c-blosk2.md"}],"affected":[{"package":{"name":"c-blosc2","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/c-blosc2@2.13.1+ds-1.1ubuntu2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12.0+ds-1","2.12.0+ds-2","2.13.1+ds-1","2.13.1+ds-1ubuntu1","2.13.1+ds-1.1ubuntu1","2.13.1+ds-1.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libblosc2-2t64","binary_version":"2.13.1+ds-1.1ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29476.json"}},{"package":{"name":"c-blosc2","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/c-blosc2@2.17.1+ds-2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.16.0+ds-1","2.17.1+ds-1","2.17.1+ds-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libblosc2-4","binary_version":"2.17.1+ds-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29476.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}