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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-200407-03] Apache 2: Remote denial of service attack Vulnerability Assessment Details
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[GLSA-200407-03] Apache 2: Remote denial of service attack |
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Apache 2: Remote denial of service attack Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200407-03 (Apache 2: Remote denial of service attack) A bug in the protocol.c file handling header lines will cause Apache to allocate memory for header lines starting with TAB or SPACE. Impact A possible hacker can exploit this vulnerability to perform a Denial of Service attack by causing Apache to exhaust all memory. On 64 bit systems with more than 4GB of virtual memory a possible integer signedness error could lead to a buffer based overflow causing Apache to crash and under some circumstances execute arbitrary code as the user running Apache, usually "apache". Workaround There is no known workaround at this time. All users are encouraged to upgrade to the latest available version: References: http://www.guninski.com/httpd1.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0493 Solution: Apache 2 users should upgrade to the latest version of Apache: # emerge sync # emerge -pv ">=net-www/apache-2.0.49-r4" # emerge ">=net-www/apache-2.0.49-r4" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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Security, Firewall, VPN |
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