{"id":"MGASA-2026-0236","summary":"Updated openvpn packages fix security vulnerabilities","details":"The updated packages fix security vulnerabilities:\nPossible 1-byte buffer overrun on NTLMv2 proxy responses.\n(CVE-2026-11771)\nMemory-leak in tls-crypt-v2 client key handling that could lead to\nout-of-memory situations and subsequent server crashes. (CVE-2026-12932)\nUse-after-free bug in ack_write_buf(), triggerable by a well-timed\nsequence of control channel + authentication packets. (CVE-2026-12996)\nUse-after-free bug in tls_wrap_reneg(), triggerable by suitable sequence\nof dynamic tls-crypt control-channel packets. (CVE-2026-13117)\nServer crash on reception of suitably malformed auth-token, if\n--auth-gen-token external-auth is active. (CVE-2026-13122)\nAnother memory leak on reception of suitable tls-crypt-v2 packets that\ncould lead to an out of memory situation and server crash.\n(CVE-2026-13698)\n","modified":"2026-07-08T16:45:05.314177777Z","published":"2026-07-08T16:36:03Z","upstream":["CVE-2026-11771","CVE-2026-12932","CVE-2026-12996","CVE-2026-13117","CVE-2026-13122","CVE-2026-13698"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0236.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=35840"},{"type":"WEB","url":"https://github.com/OpenVPN/openvpn/releases/tag/v2.6.21"},{"type":"WEB","url":"https://lists.debian.org/debian-security-announce/2026/msg00287.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3GB3J43NMV2S6RIUKB3FSX5H6RA4KP7/"}],"affected":[{"package":{"name":"openvpn","ecosystem":"Mageia:10","purl":"pkg:rpm/mageia/openvpn?arch=source&distro=mageia-10"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.21-1.mga10"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0236.json"}},{"package":{"name":"openvpn","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/openvpn?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.21-1.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0236.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}