{"id":"MGASA-2026-0375","summary":"Updated mbedtls packages fix security vulnerabilities","details":"TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised\ngroup. (CVE-2026-25832)\nPossible buffer overflow in mbedtls_ecdh_calc_secret(). (CVE-2026-35336)\nX.509 CA bit forgery via invalid basicConstraints extension.\n(CVE-2026-49300)\nUse-after-free in mbedtls_pkcs7_free() when reusing a PKCS7 context.\n(CVE-2026-50579)\nRemote buffer overflow in TLS 1.2 ECDHE-PSK client handshake.\n(CVE-2026-50580)\nExtended master secret calculation failure ignored. (CVE-2026-50581)\nA 1-byte buffer overread when parsing a malformed ECC public key in the\nPK module. (CVE-2026-50583)\nChaCha20 counter overflow can reuse keystream. (CVE-2026-50584)\nIncomplete context reset in mbedtls_ssl_session_reset().\n(CVE-2026-50585)\nA potential information disclosure in TLS 1.2 servers using session\ntickets. If the session ticket write callback failed without setting the\nlifetime output parameter, Mbed TLS could send 4 bytes of uninitialized\nstack memory to the peer in the NewSessionTicket message.\n(CVE-2026-50586)\nTiming side-channel in RSA PKCS#1 v1.5 decryption. (CVE-2026-50587)\nOut-of-bounds read in TLS 1.2 EC J-PAKE ServerKeyExchange parsing.\n(CVE-2026-50588)\nIgnored TLS 1.3 resumption secret derivation error. (CVE-2026-50640)\nHeap corruption with early renegotiation after corrupted record in DTLS.\n(CVE-2026-50713)\nSide channel leak in ECC optimized modp. (CVE-2026-54435)\nSignature algorithm restrictions not enforced on certificate chain.\n(CVE-2026-54441)\nA random generator fault can compromise TLS data integrity.\n(CVE-2026-73064)\n","modified":"2026-09-04T18:00:02.869936713Z","published":"2026-09-04T17:53:22Z","upstream":["CVE-2026-25832","CVE-2026-35336","CVE-2026-49300","CVE-2026-50579","CVE-2026-50580","CVE-2026-50581","CVE-2026-50583","CVE-2026-50584","CVE-2026-50585","CVE-2026-50586","CVE-2026-50587","CVE-2026-50588","CVE-2026-50640","CVE-2026-50713","CVE-2026-54435","CVE-2026-54441","CVE-2026-73064"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0375.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=35972"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3BALMLPIK3FBKPIGK5RZX3VUWR2QCCGQ/"},{"type":"WEB","url":"https://github.com/Mbed-TLS/mbedtls/releases#release-mbedtls-3.6.7"}],"affected":[{"package":{"name":"mbedtls","ecosystem":"Mageia:10","purl":"pkg:rpm/mageia/mbedtls?arch=source&distro=mageia-10"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-1.mga10"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0375.json"}}],"schema_version":"1.9.0","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}