Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : perl vulnerabilities (USN-2916-1)

Ubuntu Security Notice (C) 2016 Canonical, Inc. / NASL script (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

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).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected perl package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.2
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 89100 ()

Bugtraq ID:

CVE ID: CVE-2013-7422
CVE-2014-4330
CVE-2016-2381

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