{"id":"CVE-2019-13115","state":"PUBLISHED","title":"In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets a","description":"In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.","publishedAt":"2019-07-16T00:00:00.000Z","updatedAt":"2024-08-04T23:41:10.457Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/libssh2/libssh2/pull/350","https://libssh2.org/changes.html","https://github.com/libssh2/libssh2/compare/02ecf17...42d37aa","https://blog.semmle.com/libssh2-integer-overflow/","https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IF3LNHOA75O4WZWIHJLIRMA5LJUED3/","https://security.netapp.com/advisory/ntap-20190806-0002/","https://support.f5.com/csp/article/K13322484","https://support.f5.com/csp/article/K13322484?utm_source=f5support&amp%3Butm_medium=RSS","https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html","http://packetstormsecurity.com/files/172834/libssh2-1.8.2-Out-Of-Bounds-Read.html","https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:45:27.952Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/13xxx/CVE-2019-13115.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-13115","state":"PUBLISHED","datePublished":"2019-07-16T00:00:00.000Z","dateUpdated":"2024-08-04T23:41:10.457Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2019-06-30T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. 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