{"id":"AZL-85457","summary":"CVE-2026-37555 affecting package libsndfile for versions less than 1.2.2-5","details":"An issue was discovered in libsndfile 1.2.2 IMA ADPCM codec. The AIFF code path (line 241) was fixed with (sf_count_t) cast, but the WAV code path (line 235) and close path (line 167) were not. When samplesperblock (int) * blocks (int) exceeds INT_MAX, the 32-bit multiplication overflows before being assigned to sf.frames (sf_count_t/int64). With samplesperblock=50000 and blocks=50000, the product 2500000000 overflows to -1794967296. This causes incorrect frame count leading to heap buffer overflow or denial of service. Both values come from the WAV file header and are attacker-controlled. This issue was discovered after an incomplete fix for CVE-2022-33065.","modified":"2026-08-30T05:26:50Z","published":"2026-04-29T16:16:23Z","upstream":["CVE-2026-37555"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-37555"}],"affected":[{"package":{"name":"libsndfile","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/libsndfile"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2-5"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-85457.json"}}],"schema_version":"1.9.0"}