[USN-2916-1] Perl vulnerabilities

Marc Deslauriers marc.deslauriers at canonical.com
Wed Mar 2 14:10:45 UTC 2016

Ubuntu Security Notice USN-2916-1
March 02, 2016

perl vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS


Several security issues were fixed in Perl.

Software Description:
- perl: Practical Extraction and Report Language


It was discovered that Perl incorrectly handled certain regular expressions
with an invalid backreference. An attacker could use this issue to cause
Perl to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2013-7422)

Markus Vervier discovered that Perl incorrectly handled nesting in the
Data::Dumper module. An attacker could use this issue to cause Perl to
consume memory and crash, resulting in a denial of service. (CVE-2014-4330)

Stephane Chazelas discovered that Perl incorrectly handled duplicate
environment variables. An attacker could possibly use this issue to bypass
the taint protection mechanism. (CVE-2016-2381)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.10:
  perl                            5.20.2-6ubuntu0.2

Ubuntu 14.04 LTS:
  perl                            5.18.2-2ubuntu1.1

Ubuntu 12.04 LTS:
  perl                            5.14.2-6ubuntu2.5

In general, a standard system update will make all the necessary changes.

  CVE-2013-7422, CVE-2014-4330, CVE-2016-2381

Package Information:

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20160302/701fe8df/attachment.pgp>

More information about the ubuntu-security-announce mailing list