Input validation error in Perl

1) Input validation error

EUVDB-ID: #VU43242

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

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

CPE2.3

• cpe:2.3:a:perl:perl:1.49:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.18.1:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.6.6:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:perl:perl:2.8.8:*:*:*:*:*:*:*

External links

https://cpansearch.perl.org/src/FLORA/perl-5.14.2/pod/perldelta.pod
https://lists.fedoraproject.org/pipermail/package-announce/2011-November/069752.html
https://perl5.git.perl.org/perl.git/commit/1af4051e077438976a4c12a0622feaf6715bec77
https://secunia.com/advisories/46172
https://www.securityfocus.com/bid/49858
https://blogs.oracle.com/sunsecurity/entry/cve_2011_2728_denial_of1
https://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.