USN-3276-3: shadow vulnerability

Ubuntu Security Notice USN-3276-3

14th November, 2017

shadow vulnerability

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

  • Ubuntu 12.04 LTS

Summary

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

Software description

  • shadow
    – system login tools

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)

Update instructions

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

Ubuntu 12.04 LTS:
passwd

1:4.1.4.2+svn3283-3ubuntu5.2
login

1:4.1.4.2+svn3283-3ubuntu5.2

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

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

References

CVE-2017-2616


Source From: ubuntu.com.
Original article title: USN-3276-3: shadow vulnerability.
This full article can be read at: USN-3276-3: shadow vulnerability.

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