1. Ubuntu Security Notices
  2. USN-3276-3

USN-3276-3: shadow vulnerability

Publication date

14 November 2017

Overview

su could be made to crash or stop programs as an administrator.

Releases

Packages

Details

USN-3276-1 and USN-3276-2 fixed vulnerabilities in shadow. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Sebastian Krahmer discovered integer overflows in shadow utilities.
A local attacker could possibly cause them to crash or potentially
gain privileges via crafted input. (CVE-2016-6252)

USN-3276-1 and USN-3276-2 fixed vulnerabilities in shadow. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Sebastian Krahmer discovered integer overflows in shadow utilities.
A local attacker could possibly cause them to crash or potentially
gain privileges via crafted input. (CVE-2016-6252)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
12.04 precise passwd –  1:4.1.4.2+svn3283-3ubuntu5.2
login –  1:4.1.4.2+svn3283-3ubuntu5.2

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References

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