Unrated severityNVD Advisory· Published Jul 16, 2019· Updated Aug 4, 2024
CVE-2019-13115
CVE-2019-13115
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- libssh2/libssh2description
Patches
Vulnerability mechanics
References
15- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IF3LNHOA75O4WZWIHJLIRMA5LJUED3/mitrevendor-advisory
- lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Emitremailing-list
- lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Emitremailing-list
- lists.debian.org/debian-lts-announce/2019/07/msg00024.htmlmitremailing-list
- lists.debian.org/debian-lts-announce/2021/12/msg00013.htmlmitremailing-list
- lists.debian.org/debian-lts-announce/2023/09/msg00006.htmlmitremailing-list
- packetstormsecurity.com/files/172834/libssh2-1.8.2-Out-Of-Bounds-Read.htmlmitre
- blog.semmle.com/libssh2-integer-overflow/mitre
- github.com/libssh2/libssh2/compare/02ecf17...42d37aamitre
- github.com/libssh2/libssh2/pull/350mitre
- libssh2.org/changes.htmlmitre
- security.netapp.com/advisory/ntap-20190806-0002/mitre
- support.f5.com/csp/article/K13322484mitre
- support.f5.com/csp/article/K13322484mitre
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