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Ubuntu Security Notice USN-3536-1

Ubuntu Security Notice USN-3536-1
Posted Jan 18, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3536-1 - It was discovered that the GNU C library did not properly handle all of the possible return values from the kernel getcwd syscall. A local attacker could potentially exploit this to execute arbitrary code in setuid programs and gain administrative privileges.

tags | advisory, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-1000001
SHA-256 | b8e54aa839f1953cae81c827296bd6d411bf14b4a0889c2311ae75dee2b376e7

Ubuntu Security Notice USN-3536-1

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3536-1
January 17, 2018

eglibc vulnerability
===========================================================================

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

- Ubuntu 12.04 ESM

Summary:

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

Software Description:
- eglibc: GNU C Library

Details:

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

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

References:
https://www.ubuntu.com/usn/usn-3536-1
CVE-2018-1000001



--BN2iJO00qj8aC62vRtmPCHfITXqqdtnkO--

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