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Family: Mandrake Local Security Checks --> Category: infos

MDKSA-2006:179: openssh Vulnerability Scan


Vulnerability Scan Summary
Check for the version of the openssh package

Detailed Explanation for this Vulnerability Test

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 allow 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
Threat Level: High

Click HERE for more information and discussions on this network vulnerability scan.

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