{"id":"MGASA-2026-0273","summary":"Updated libssh2 packages fix security vulnerabilities","details":"The updated packages fix security vulnerabilities:\nHeap Buffer Over-read via sftp_symlink() in sftp.c. (CVE-2025-15661)\nlibssh2 userauth.c userauth_password integer overflow. (CVE-2026-7598)\nPre-Authentication DoS via SSH_MSG_EXT_INFO Handler. (CVE-2026-55199)\nOut-of-Bounds Write via Unchecked packet_length in transport.c.\n(CVE-2026-55200)\nInteger Overflow in publickey Subsystem Attribute Allocation.\n(CVE-2026-58050)\nFree of Uninitialized Pointer in publickey List Cleanup.\n(CVE-2026-58051)\n","modified":"2026-07-20T19:56:17.719808024Z","published":"2026-07-20T19:06:32Z","upstream":["CVE-2025-15661","CVE-2026-55199","CVE-2026-55200","CVE-2026-58050","CVE-2026-58051","CVE-2026-7598"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0273.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=35616"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRU63FODXZBBO73NFWUI32A2A36ETDQZ/"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/06/23/10"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/06/23/11"},{"type":"WEB","url":"https://lists.debian.org/debian-security-announce/2026/msg00276.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZREI4LITT4U2ZXPEEVVNALFKPLXGLAFM/"},{"type":"WEB","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/SRBHQ76PA4ZHTWY5F4ESYPYF3G2NLGWI/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8486-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8532-1"}],"affected":[{"package":{"name":"libssh2","ecosystem":"Mageia:10","purl":"pkg:rpm/mageia/libssh2?arch=source&distro=mageia-10"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.1-2.1.mga10"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0273.json"}},{"package":{"name":"libssh2","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/libssh2?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0-1.1.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0273.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}