Denial of Service Vulnerability in LibSSH by Artifex Software
CVE-2015-3146

7.5HIGH

Key Information:

Vendor

Libssh

Status
Libssh
Vendor
CVE Published:
13 April 2016

What is CVE-2015-3146?

The vulnerability in LibSSH arises from improper state validation in the packet handlers for SSH_MSG_NEWKEYS and SSH_MSG_KEXDH_REPLY, potentially allowing remote attackers to send specially crafted SSH packets that trigger a NULL pointer dereference. This results in a denial of service, causing the affected system to crash. As a result, both stability and security of systems using vulnerable versions of LibSSH could be compromised, emphasizing the need for prompt updates to the secure versions.

References

http://www.ubuntu.com/usn/USN-2912-1
vendor-advisoryx_refsource_UBUNTU
http://lists.fedoraproject.org/pipermail/package-announce...
vendor-advisoryx_refsource_FEDORA
https://www.libssh.org/security/advisories/CVE-2015-3146.txt
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.