USN-3536-1: GNU C Library vulnerability

17 January 2018

eglibc vulnerability

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

  • Ubuntu 12.04 ESM


The GNU C library could be made to run programs as an administrator.

Software Description

  • eglibc - GNU C Library


It was discovered that the GNU C library did not properly handle all of the possible return values from the kernel getcwd(2) syscall. A local attacker could potentially exploit this to execute arbitrary code in setuid programs and gain administrative privileges. (CVE-2018-1000001)

Update instructions

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

Ubuntu 12.04 ESM
libc6 - 2.15-0ubuntu10.21

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.