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  • Keyword (text search): cpe:2.3:a:libssh2:libssh2:1.8.2:*:*:*:*:*:*:*
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Vuln ID Summary CVSS Severity
CVE-2019-17498

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted 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.

Published: October 21, 2019; 6:15:10 PM -0400
V3.1: 8.1 HIGH
V2.0: 5.8 MEDIUM
CVE-2019-13115

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.

Published: July 16, 2019; 2:15:13 PM -0400
V3.0: 8.1 HIGH
V2.0: 5.8 MEDIUM