USN-2433-1: tcpdump vulnerabilities

4 December 2014

tcpdump vulnerabilities

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

  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in tcpdump.

Software Description

  • tcpdump - command-line network traffic analyzer

Details

Steffen Bauch discovered that tcpdump incorrectly handled printing OSLR packets. A remote attacker could use this issue to cause tcpdump to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-8767)

Steffen Bauch discovered that tcpdump incorrectly handled printing GeoNet packets. A remote attacker could use this issue to cause tcpdump to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2014-8768)

Steffen Bauch discovered that tcpdump incorrectly handled printing AODV packets. A remote attacker could use this issue to cause tcpdump to crash, resulting in a denial of service, reveal sensitive information, or possibly execute arbitrary code. (CVE-2014-8769)

It was discovered that tcpdump incorrectly handled printing PPP packets. A remote attacker could use this issue to cause tcpdump to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-9140)

In the default installation, attackers would be isolated by the tcpdump AppArmor profile.

Update instructions

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

Ubuntu 14.10
tcpdump - 4.6.2-1ubuntu1.1
Ubuntu 14.04 LTS
tcpdump - 4.5.1-2ubuntu1.1
Ubuntu 12.04 LTS
tcpdump - 4.2.1-1ubuntu2.1
Ubuntu 10.04 LTS
tcpdump - 4.0.0-6ubuntu3.1

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