PT-2015-6077 · Libssh+3 · Libssh+3

Mariusz Ziulek · Published 2015-05-05 · Updated 2024-06-15 · CVE-2015-3146

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libssh versions prior to 0.6.5

Description The issue is related to the improper validation of state in the SSH MSG NEWKEYS and SSH MSG KEXDH REPLY packet handlers. This allows remote attackers to cause a denial of service, resulting in a NULL pointer dereference and crash, via a crafted SSH packet.

Recommendations For versions prior to 0.6.5, update to version 0.6.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the SSH service to minimize the risk of exploitation.

Fix

Related Identifiers

ALT-PU-2015-1549

CVE-2015-3146

DSA-3488-1

MGASA-2015-0209

OPENSUSE-SU-2024:10036-1

SUSE-SU-2015:1707-1

SUSE-SU-2015:1707-2

SUSE-SU-2015_1707-2

USN-2912-1

Affected Products

Alt Linux

Suse

Ubuntu

Libssh

References · 45

• https://ubuntu.com/security/notices/USN-2912-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10036-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8132 · Security Note
• https://errata.altlinux.org/ALT-PU-2015-1549 · Vendor Advisory
• https://libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release · Vendor Advisory
• http://debian.org/security/2016/dsa-3488 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2015-3146 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2015-3146 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-3146 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2015-0209 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/libssh · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-3146 · Security Note
• https://libssh.org/security/advisories/CVE-2015-3146.txt · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2015:1707-2 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2912-1 · Vendor Advisory