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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-07-16T00:00:00

Updated: 2024-08-04T23:41:10.457Z

Reserved: 2019-06-30T00:00:00

Link: CVE-2019-13115

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-07-16T18:15:13.287

Modified: 2024-11-21T04:24:13.313

Link: CVE-2019-13115

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-07-16T00:00:00Z

Links: CVE-2019-13115 - Bugzilla