Ubuntu Security Notice 3478-1 - 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.
4110b15e29d147493be4523d5ce7d758642b163da3bc0f38eebaf8b8d4cfb359
===========================================================================
Ubuntu Security Notice USN-3478-1
November 13, 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
Summary:
Perl could be made to crash if it received specially crafted
input.
Software Description:
- perl: Practical Extraction and Report Language
Details:
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=C2=A05.24.1-2ubuntu1.1
Ubuntu 16.04 LTS:
perl=C2=A05.22.1-9ubuntu0.2
Ubuntu 14.04 LTS:
perl=C2=A05.18.2-2ubuntu1.3
In general, a standard system update will make all the necessary
changes.
References:
https://www.ubuntu.com/usn/usn-3478-1
CVE-2017-12837, CVE-2017-12883
Package Information:
https://launchpad.net/ubuntu/+source/perl/5.24.1-2ubuntu1.1
https://launchpad.net/ubuntu/+source/perl/5.22.1-9ubuntu0.2
https://launchpad.net/ubuntu/+source/perl/5.18.2-2ubuntu1.3