{"schemaVersion":3,"id":"MGASA-2026-0236","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated openvpn packages fix security vulnerabilities\n\nThe 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)","dates":{"published":"2026-07-08T16:36:03.000Z","modified":"2026-07-08T16:45:05.314Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"openvpn","name":"openvpn","label":"openvpn","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/openvpn","purlType":"rpm","versions":[{"text":"< 2.6.21-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.6.21-1.mga10","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"openvpn","label":"OpenVPN","category":"app"}},"hubHref":null},{"vendor":"mageia","product":"openvpn","name":"openvpn","label":"openvpn","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/openvpn","purlType":"rpm","versions":[{"text":"< 2.6.21-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.6.21-1.mga9","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"openvpn","label":"OpenVPN","category":"app"}},"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2026-0236.html","label":"advisories.mageia.org/MGASA-2026-0236.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35840","label":"bugs.mageia.org/show_bug.cgi?id=35840","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://github.com/OpenVPN/openvpn/releases/tag/v2.6.21","label":"github.com/OpenVPN/openvpn/releases/tag/v2.6.21","hostname":"github.com","tags":["WEB"]},{"url":"https://lists.debian.org/debian-security-announce/2026/msg00287.html","label":"lists.debian.org/debian-security-announce/2026/msg00287.html","hostname":"lists.debian.org","tags":["WEB"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3GB3J43NMV2S6RIUKB3FSX5H6RA4KP7/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-11771","CVE-2026-12932","CVE-2026-12996","CVE-2026-13117","CVE-2026-13122","CVE-2026-13698"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-08T16:36:03.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-08T16:45:05.314Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T21:44:30.203Z","stale":false,"partial":false}}