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.

• openbsd openssh (<= 4.3p2) • openbsd openssh 1.2 • openbsd openssh 1.2.1 • openbsd openssh 1.2.2 • openbsd openssh 1.2.3 • openbsd openssh 1.2.27 • openbsd openssh 1.3 • openbsd openssh 1.5 • openbsd openssh 1.5.7 • openbsd openssh 1.5.8 • openbsd openssh 2 • openbsd openssh 2.1 • openbsd openssh 2.1.1 • openbsd openssh 2.2 • openbsd openssh 2.3 • openbsd openssh 2.3.1 • openbsd openssh 2.5 • openbsd openssh 2.5.1 • openbsd openssh 2.5.2 • openbsd openssh 2.9 • openbsd openssh 2.9.9 • openbsd openssh 2.9.9p2 • openbsd openssh 2.9p1 • openbsd openssh 2.9p2 • openbsd openssh 3.0 • openbsd openssh 3.0.1 • openbsd openssh 3.0.1p1 • openbsd openssh 3.0.2 • openbsd openssh 3.0.2p1 • openbsd openssh 3.0p1 • openbsd openssh 3.1 • openbsd openssh 3.1p1 • openbsd openssh 3.2 • openbsd openssh 3.2.2 • openbsd openssh 3.2.2p1 • openbsd openssh 3.2.3p1 • openbsd openssh 3.3 • openbsd openssh 3.3p1 • openbsd openssh 3.4 • openbsd openssh 3.4p1 • openbsd openssh 3.5 • openbsd openssh 3.5p1 • openbsd openssh 3.6 • openbsd openssh 3.6.1 • openbsd openssh 3.6.1p1 • openbsd openssh 3.6.1p2 • openbsd openssh 3.7 • openbsd openssh 3.7.1 • openbsd openssh 3.7.1p1 • openbsd openssh 3.7.1p2 • openbsd openssh 3.8 • openbsd openssh 3.8.1 • openbsd openssh 3.8.1p1 • openbsd openssh 3.9 • openbsd openssh 3.9.1 • openbsd openssh 3.9.1p1 • openbsd openssh 4.0 • openbsd openssh 4.0p1 • openbsd openssh 4.1 • openbsd openssh 4.1p1 … and 8 more