USN-4221-2: libpcap vulnerability

USN-4221-2: libpcap vulnerability

libpcap vulnerability

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

• Ubuntu 12.04 ESM

Summary

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

Software Description

• 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 ESM

libpcap0.8 – 1.1.1-10ubuntu0.1

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

• USN-4221-1
• CVE-2019-15165

Source: USN-4221-2: libpcap vulnerability