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


Source From: ubuntu.com.
Original article title: USN-3573-1: Quagga vulnerabilities.
This full article can be read at: USN-3573-1: Quagga vulnerabilities.

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