USN-4221-2: libpcap vulnerability

15 January 2020

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

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).

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