National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-13115 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 8.1 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.semmle.com/libssh2-integer-overflow/ Exploit Third Party Advisory
https://github.com/libssh2/libssh2/compare/02ecf17...42d37aa Third Party Advisory
https://github.com/libssh2/libssh2/pull/350 Issue Tracking Third Party Advisory
https://libssh2.org/changes.html Release Notes Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/
https://lists.fedoraproject.org/archives/list/package-announce@lists.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&utm_medium=RSS

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
1.9.0


Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-13115
NVD Published Date:
07/16/2019
NVD Last Modified:
07/25/2019