USN-3995-2: Keepalived vulnerability

keepalived vulnerability

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

Ubuntu 14.04 ESM
Ubuntu 12.04 ESM

Summary

Keepalived could be made to crash or run programs if it received
specially crafted network traffic.

Software Description

keepalived – Failover and monitoring daemon for LVS clusters

Details

USN-3995-1 fixed a vulnerability in keepalived. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Keepalived incorrectly handled certain HTTP status
response codes. A remote attacker could use this issue to cause Keepalived
to crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions

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

Ubuntu 14.04 ESM: keepalived – 1:1.2.7-1ubuntu1+esm1
Ubuntu 12.04 ESM: keepalived – 1:1.2.2-3ubuntu1.2

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

Source: USN-3995-2: Keepalived vulnerability

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