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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-200406-07] Subversion: Remote heap overflow Vulnerability Assessment Details
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[GLSA-200406-07] Subversion: Remote heap overflow |
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Subversion: Remote heap overflow Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200406-07 (Subversion: Remote heap overflow) The svn protocol parser trusts the indicated length of a URI string sent by a client. This permits a client to specify a very long string, thereby causing svnserve to allocate enough memory to hold that string. This may cause a Denial of Service. Alternately, given a string that causes an integer overflow in the variable holding the string length, the server might allocate less memory than required, permiting a heap overflow. This heap overflow may then be exploitable, permiting remote code execution. The attacker does not need read or write access to the Subversion repository being served, since even un-authenticated users can send svn protocol requests. Impact Ranges from remote Denial of Service to potential arbitrary code execution with rights of the svnserve process. Workaround Servers without svnserve running are not vulnerable. Disable svnserve and use DAV for access instead. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0413 Solution: All users should upgrade to the latest version of Subversion. # emerge sync # emerge -pv ">=dev-util/subversion-1.0.4-r1" # emerge ">=dev-util/subversion-1.0.4-r1" Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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