USN-4338-2: re2c vulnerability

28 April 2020

re2c vulnerability

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

  • Ubuntu 20.04 LTS


re2c could be made to execute arbitrary code if it received a specially crafted file.

Software Description

  • re2c - tool for generating fast C-based recognizers


USN-4338-1 fixed vulnerabilities in re2c. This update provides the corresponding update for Ubuntu 20.04 LTS.

Original advisory details:

Agostino Sarubbo discovered that re2c incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 20.04 LTS
re2c - 1.3-1ubuntu0.1

To update your system, please follow these instructions:

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