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Family: Gentoo Local Security Checks --> Category: infos
[GLSA-200406-07] Subversion: Remote heap overflow Vulnerability Scan
Vulnerability Scan Summary
Subversion: Remote heap overflow
Detailed Explanation for this Vulnerability Test
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 allows 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, allowing a heap overflow. This
heap overflow may then be exploitable, allowing 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"
Threat Level: High
Click HERE for more information and discussions on this network vulnerability scan.
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