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Home » Security Advisories» OpenPKG » Perl integer overflow, arbitrary code execution

Perl integer overflow, arbitrary code execution

According to a security advisory from Dyad Security, an integer overflow bug exists in the Perl programming language. The integer overflow is in the format string functionality (Perl_sv_vcatpvfn) of Perl and allows attackers to overwrite arbitrary memory and possibly execute arbitrary code via format string specifiers with large values.

  • Vendor: OpenPKG
  • Vendor ID: SA-2005.025
  • Date: December 03, 2005


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________________________________________________________________________

OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
[email protected] [email protected]
OpenPKG-SA-2005.025 03-Dec-2005
________________________________________________________________________

Package: perl
Vulnerability: integer overflow, arbitrary code execution
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= perl-5.8.7-20050921 >= perl-5.8.7-20051203
OpenPKG 2.5 <= perl-5.8.7-2.5.0 >= perl-5.8.7-2.5.1
OpenPKG 2.4 <= perl-5.8.7-2.4.0 >= perl-5.8.7-2.4.1
OpenPKG 2.3 <= perl-5.8.6-2.3.0 >= perl-5.8.6-2.3.1

Description:
According to a security advisory from Dyad Security [0], an integer
overflow bug exists in the Perl [1] programming language. The integer
overflow is in the format string functionality (Perl_sv_vcatpvfn) of
Perl and allows attackers to overwrite arbitrary memory and possibly
execute arbitrary code via format string specifiers with large values.
The Common Vulnerabilities and Exposures (CVE) project assigned the id
CVE-2005-3962 [2] to the problem.
________________________________________________________________________

References:
[0] http://www.dyadsecurity.com/perl-0002.html
[1] http://www.perl.org/
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3962
________________________________________________________________________

For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG " (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
________________________________________________________________________

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