USN-3573-1: Quagga vulnerabilities

16 February 2018

quagga vulnerabilities

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

  • Ubuntu 17.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Quagga.

Software Description

  • quagga - BGP/OSPF/RIP routing daemon

Details

It was discovered that a double-free vulnerability existed in the Quagga BGP daemon when processing certain forms of UPDATE message. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2018-5379)

It was discovered that the Quagga BGP daemon did not properly bounds check the data sent with a NOTIFY to a peer. An attacker could use this to expose sensitive information or possibly cause a denial of service. This issue only affected Ubuntu 17.10. (CVE-2018-5378)

It was discovered that a table overrun vulnerability existed in the Quagga BGP daemon. An attacker in control of a configured peer could use this to possibly expose sensitive information or possibly cause a denial of service. (CVE-2018-5380)

It was discovered that the Quagga BGP daemon in some configurations did not properly handle invalid OPEN messages. An attacker in control of a configured peer could use this to cause a denial of service (infinite loop). (CVE-2018-5381)

Update instructions

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

Ubuntu 17.10
quagga - 1.1.1-3ubuntu0.2
quagga-bgpd - 1.1.1-3ubuntu0.2
Ubuntu 16.04 LTS
quagga - 0.99.24.1-2ubuntu1.4
Ubuntu 14.04 LTS
quagga - 0.99.22.4-3ubuntu1.5

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

After a standard system update you need to restart Quagga to make all the necessary changes.

References