CVE-2008-4109

A certain Debian patch for OpenSSH before 4.3p2-9etch3 on etch; before 4.6p1-1 on sid and lenny; and on other distributions such as SUSE uses functions that are not async-signal-safe in the signal handler for login timeouts, which allows remote attackers to cause a denial of service (connection slot exhaustion) via multiple login attempts. NOTE: this issue exists because of an incorrect fix for CVE-2006-5051.

Affected products

Openssh, Openssh-Clients, Openssh-Client-Udeb, Openssh-Server, Openssh-Server-Udeb, Ssh-Askpass-Gnome, Ssh-Krb5

Openbsd Openssh

≤ 4.3p2, 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.27, 1.3, 1.5, 1.5.7, 1.5.8, 2, 2.1, 2.1.1, 2.2, 2.3, 2.3.1, 2.5, 2.5.1, 2.5.2, 2.9, 2.9.9, 2.9.9p2, 2.9p1, 2.9p2, 3.0, 3.0.1, 3.0.1p1, 3.0.2, 3.0.2p1, 3.0p1, 3.1, 3.1p1, 3.2, 3.2.2, 3.2.2p1, 3.2.3p1, 3.3, 3.3p1, 3.4, 3.4p1

Fix

Available

CVSS 2.0

5.0 MEDIUM

EPSS

28.6% (98th percentile)

Weakness

CWE-264

NVD status

Modified

Published

2008-09-17