Input validation error in Perl

1) Input validation error

EUVDB-ID: #VU43242

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2011-2728

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The bsd_glob function in the File::Glob module for Perl before 5.14.2 allows context-dependent attackers to cause a denial of service (crash) via a glob expression with the GLOB_ALTDIRFUNC flag, which triggers an uninitialized pointer dereference.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Perl: 1.00 - 5.14.0

External links

http://cpansearch.perl.org/src/FLORA/perl-5.14.2/pod/perldelta.pod
http://lists.fedoraproject.org/pipermail/package-announce/2011-November/069752.html
http://perl5.git.perl.org/perl.git/commit/1af4051e077438976a4c12a0622feaf6715bec77
http://secunia.com/advisories/46172
http://www.securityfocus.com/bid/49858
http://blogs.oracle.com/sunsecurity/entry/cve_2011_2728_denial_of1
http://bugzilla.redhat.com/show_bug.cgi?id=742987

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.