Ubuntu 19.10: USN-4198-1 Critical DjVuLibre Remote Execution Risk

ubuntu

November 21, 2019

Several security issues were fixed in DjVuLibre.

Summary

Several security issues were fixed in DjVuLibre.

Software Description:

- djvulibre: DjVu image format library and tools

Details:

It was discovered that DjVuLibre incorrectly handled certain memory

operations. If a user or automated system were tricked into processing a

specially crafted DjVu file, a remote attacker could cause applications

to hang or crash, resulting in a denial of service, or possibly execute

arbitrary code.

Topics Covered

security advisory DoS Ubuntu remote execution memory operations DjVuLibre

Update Instructions

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

Ubuntu 19.10:
  libdjvulibre21                  3.5.27.1-13ubuntu0.1

Ubuntu 19.04:
  libdjvulibre21                  3.5.27.1-10ubuntu0.1

Ubuntu 18.04 LTS:
  libdjvulibre21                  3.5.27.1-8ubuntu0.1

Ubuntu 16.04 LTS:
  libdjvulibre21                  3.5.27.1-5ubuntu0.1

After a standard system update you need to reboot your computer to make
all the necessary changes.