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Ubuntu Security Notice USN-3834-2

Ubuntu Security Notice USN-3834-2
Posted Dec 3, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3834-2 - USN-3834-1 fixed a vulnerability in perl. This update provides the corresponding update for Ubuntu 12.04 ESM. Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, perl
systems | linux, ubuntu
advisories | CVE-2018-18311, CVE-2018-18313
MD5 | 4b1cb856c5b70ee9027861be4c5bfe83

Ubuntu Security Notice USN-3834-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3834-2
December 03, 2018

perl vulnerabilities
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in Perl.

Software Description:
- perl: Practical Extraction and Report Language

Details:

USN-3834-1 fixed a vulnerability in perl. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Jayakrishna Menon discovered that Perl incorrectly handled
Perl_my_setenv. An attacker could use this issue to cause Perl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-18311)

Eiichi Tsukata discovered that Perl incorrectly handled certain
regular expressions. An attacker could use this issue to cause Perl to
crash, resulting in a denial of service. (CVE-2018-18313)

Update instructions:

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

Ubuntu 12.04 ESM:
perl 5.14.2-6ubuntu2.9

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

References:
https://usn.ubuntu.com/usn/usn-3834-2
https://usn.ubuntu.com/usn/usn-3834-1
CVE-2018-18311, CVE-2018-18313

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