CVEvulnerability

CVE-2019-13115

8.1 HIGH Published 2019-07-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-07-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:P
Weaknesses
CWE-125, CWE-190

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.

Affected configurations

• libssh2 libssh2 (< 1.9.0) • debian debian linux 8.0 • debian debian linux 9.0 • fedoraproject fedora 29 • fedoraproject fedora 30 • netapp cloud backup • netapp e-series santricity os controller (>= 11.0.0 <= 11.70.1) • netapp ontap select deploy administration utility • f5 traffix systems signaling delivery controller (>= 5.0.0 <= 5.1.0)

Related

Weakness · CWE (2)

  • CWE-125 Out-of-bounds Read weakness
  • CWE-190 Integer Overflow or Wraparound weakness

References