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[ GLSA 200406-06 ] CVS: additional DoS and arbitrary code execution vulnerabilities
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GLSA
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PostPosted: Thu Jun 10, 2004 7:56 pm    Post subject: [ GLSA 200406-06 ] CVS: additional DoS and arbitrary code ex Reply with quote

Gentoo Linux Security Advisory

Title: CVS: additional DoS and arbitrary code execution vulnerabilities (GLSA 200406-06)
Severity: high
Exploitable: remote
Date: June 10, 2004
Bug(s): #53408
ID: 200406-06

Synopsis

Several serious new vulnerabilities have been found in CVS, which may allow an attacker to remotely compromise a CVS server.

Background

CVS (Concurrent Versions System) is an open-source network-transparent version control system. It contains both a client utility and a server.

Affected Packages

Package: dev-util/cvs
Vulnerable: <= 1.11.16-r1
Unaffected: >= 1.11.17
Architectures: All supported architectures


Description

A team audit of the CVS source code performed by Stefan Esser and Sebastian Krahmer resulted in the discovery of several remotely exploitable vulnerabilities including:
  • no-null-termination of "Entry" lines
  • error_prog_name "double-free()"
  • Argument integer overflow
  • serve_notify() out of bounds writes


Impact

An attacker could use these vulnerabilities to cause a Denial of Service or execute arbitrary code with the permissions of the user running cvs.

Workaround

There is no known workaround at this time. All users are advised to upgrade to the latest available version of CVS.

Resolution

All CVS users should upgrade to the latest stable version:
Code:
# emerge sync
# emerge -pv ">=dev-util/cvs-1.11.17"
# emerge ">=dev-util/cvs-1.11.17"


References

E-matters Advisory 09/2004
CAN-2004-0414
CAN-2004-0416
CAN-2004-0417
CAN-2004-0418


Last edited by GLSA on Sun May 07, 2006 4:51 pm; edited 1 time in total
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