[USN-4221-2] libpcap vulnerability
Leonidas S. Barbosa
leo.barbosa at canonical.com
Wed Jan 15 16:48:06 UTC 2020
Ubuntu Security Notice USN-4221-2
January 15, 2020
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Applications using libpcap could be made to crash if given specially
- libpcap: Library for for user-level network packet capture
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
The problem can be corrected by updating your system to the following
Ubuntu 12.04 ESM:
In general, a standard system update will make all the necessary changes.
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