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USN-4087-1: BWA vulnerability

6 August 2019

BWA could be made to crash or run programs as your login if it opened a specially crafted file.



  • bwa - Software package for mapping DNA sequences against a large reference genome


It was discovered that Burrows-Wheeler Aligner (BWA) mishandled certain
crafted .alt files. An attacker could use this vulnerability to cause a
denial of service (crash) or possibly execute arbitrary code.

Update instructions

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

Ubuntu 19.04
Ubuntu 18.04

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