USN-3323-1: GNU C Library vulnerability
Ubuntu Security Notice USN-3323-1
19th June, 2017
eglibc, glibc vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Gnu C library could be made to run programs as an administrator.
Software description
- eglibc
– GNU C Library - glibc
– GNU C Library
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 17.04:
-
libc6
2.24-9ubuntu2.2
- Ubuntu 16.10:
-
libc6
2.24-3ubuntu2.2
- Ubuntu 16.04 LTS:
-
libc6
2.23-0ubuntu9
- Ubuntu 14.04 LTS:
-
libc6
2.19-0ubuntu6.13
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
Source: USN-3323-1: GNU C Library vulnerability
