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CVS Buffer Overflow and Denial of Service Vulnerabilities
Secunia Advisory: SA14976
Release Date: 2005-04-19
Last Update: 2005-04-26
Popularity: 14,458 views

Critical:
Moderately critical
Impact: Unknown
DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:Concurrent Versions System (CVS) 1.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Multiple vulnerabilities have been reported in CVS, where one has an unknown impact and others which can be exploited by malicious people to cause a DoS (Denial of Service) and compromise a vulnerable system.

1) A boundary error in the CVS client during processing of version and author information can be exploited to cause a buffer overflow and execute arbitrary code by tricking a user into connecting to a malicious CVS server.

2) Some memory leaks and NULL pointer dereferences may be exploited to cause a DoS.

3) An unspecified error caused due to an arbitrary free has an unknown impact.

4) Some errors in the contributed Perl scripts can be exploited to execute arbitrary code via a malicious Perl library.

Successful exploitation requires that the user has commit access and that one of the contributed Perl scripts has been installed improperly.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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