USN-3478-1: Perl vulnerabilities

13 November 2017

perl vulnerabilities

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

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS


Perl could be made to crash if it received specially crafted input.

Software Description

  • perl - Practical Extraction and Report Language


Jakub Wilk 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, or possibly execute arbitrary code. (CVE-2017-12837, CVE-2017-12883)

Update instructions

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

Ubuntu 17.04
perl - 5.24.1-2ubuntu1.1
Ubuntu 16.04 LTS
perl - 5.22.1-9ubuntu0.2
Ubuntu 14.04 LTS
perl - 5.18.2-2ubuntu1.3

To update your system, please follow these instructions:

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