{"id":"AZL-83618","summary":"CVE-2026-41676 affecting package 389-ds-base 3.1.1-11","details":"rust-openssl provides OpenSSL bindings for the Rust programming language.  From 0.9.27 to before 0.10.78, Deriver::derive (and PkeyCtxRef::derive) sets len = buf.len() and passes it as the in/out length to EVP_PKEY_derive, relying on OpenSSL to honor it. On OpenSSL 1.1.x, X25519, X448, DH and HKDF-extract ignore the incoming *keylen, unconditionally writing the full shared secret (32/56/prime-size bytes). A caller passing a short slice gets a heap/stack overflow from safe code. OpenSSL 3.x providers do check, so this only impacts older OpenSSL. This vulnerability is fixed in 0.10.78.","modified":"2026-08-30T05:24:52Z","published":"2026-04-24T18:16:29Z","upstream":["CVE-2026-41676"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41676"}],"affected":[{"package":{"name":"389-ds-base","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/389-ds-base"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.1-11"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-83618.json"}}],"schema_version":"1.9.0"}