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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.
Vulnerability Assessment Details
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
Ranges from remote Denial of Service to potential arbitrary code execution
with rights of the svnserve process.
Servers without svnserve running are not vulnerable. Disable svnserve and
use DAV for access instead.
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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