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USN-4221-2: libpcap vulnerability

15 January 2020

Applications using libpcap could be made to crash if given specially crafted data.

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Releases

Packages

  • libpcap - Library for for user-level network packet capture

Details

USN-4221-1 fixed a vulnerability in libpcap. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that libpcap did not properly validate PHB headers in
some situations. An attacker could use this to cause a denial of service
(memory exhaustion).

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 12.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-4221-1: libpcap0.8, libpcap-dev, libpcap0.8-dev, libpcap