USN-3573-1: Quagga vulnerabilities

Ubuntu Security Notice USN-3573-1

15th 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 version:

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

CVE-2018-5378, CVE-2018-5379, CVE-2018-5380, CVE-2018-5381

from Ubuntu Security Notices http://ift.tt/2C03Gxl