Several security issues were fixed in Perl.
USN-3625-1 fixed a vulnerability in Perl. This update provides the corresponding update for Ubuntu 12.04 ESM.
17 April 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Perl.
USN-3625-1 fixed a vulnerability in Perl. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Perl incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause Perl to hang, resulting in a denial of service. (CVE-2015-8853)
It was discovered that Perl incorrectly loaded libraries from the current working directory. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2016-6185)
It was discovered that Perl incorrectly handled the rmtree and remove_tree functions. A local attacker could possibly use this issue to set the mode on arbitrary files. (CVE-2017-6512)
GwanYeong Kim discovered that Perl incorrectly handled certain data when using the pack function. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-6913)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon