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Home >> Browse Vulnerability Assessment Database >> Mandrake Local Security Checks >> MDKSA-2006:179: openssh


Vulnerability Assessment Details

MDKSA-2006:179: openssh

Vulnerability Assessment Summary
Check for the version of the openssh package

Detailed Explanation for this Vulnerability Assessment

The remote host is missing the patch for the advisory MDKSA-2006:179 (openssh).

Tavis Ormandy of the Google Security Team discovered a Denial of
Service vulnerability in the SSH protocol version 1 CRC compensation
attack detector. This could permit a remote unauthenticated attacker to
trigger excessive CPU utilization by sending a specially crafted SSH
message, which would then deny ssh services to other users or processes
(CVE-2006-4924, CVE-2006-4925). Please note that Mandriva ships with
only SSH protocol version 2 enabled by default.
Next, an unsafe signal handler was found by Mark Dowd. This signal
handler was vulnerable to a race condition that could be exploited to
perform a pre-authentication DoS, and theoretically a
pre-authentication remote code execution in the case where some
authentication methods like GSSAPI are enabled (CVE-2006-5051).
Updated packages have been patched to correct this issue.

Solution : http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2006:179
Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2007 Tenable Network Security

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