USN-3323-2: GNU C Library vulnerability

USN-3323-2: GNU C Library vulnerability

Ubuntu Security Notice USN-3323-2

29th June, 2017

eglibc vulnerability

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

  • Ubuntu 12.04 LTS

Summary

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

Software description

  • eglibc
    – GNU C Library

Details

USN-3323-1 fixed a vulnerability in the GNU C Library. This update provides the
corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that the GNU C library did not properly handle memory
when processing environment variables for setuid programs. A local attacker
could use this in combination with another vulnerability to gain
administrative privileges.

Update instructions

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

Ubuntu 12.04 LTS:
libc6

2.15-0ubuntu10.20

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2017-1000366

Source: USN-3323-2: GNU C Library vulnerability

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