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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200609-17] OpenSSH: Denial of Service Vulnerability Assessment Details
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[GLSA-200609-17] OpenSSH: Denial of Service |
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OpenSSH: Denial of Service Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200609-17 (OpenSSH: Denial of Service) Tavis Ormandy of the Google Security Team discovered a Denial of Service vulnerability in the SSH protocol version 1 CRC compensation attack detector. Impact A remote unauthenticated attacker may be able to trigger excessive CPU usage by sending a pathological SSH message, denying service to other legitimate users or processes. Workaround The system administrator may disable SSH protocol version 1 in /etc/ssh/sshd_config. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4924 Solution: All OpenSSH users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/openssh-4.3_p2-r5" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2006 Michel Arboi |
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