USN-4957-1: DjVuLibre vulnerabilities

17 May 2021

Several security issues were fixed in DjVuLibre.

Releases

Packages

  • 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.

Update instructions

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

Ubuntu 21.04
Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04

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

Related notices

  • USN-4957-2: libdjvulibre-dev, djview, libdjvulibre21, djvulibre-desktop, djview3, djvulibre, djvuserve, djvulibre-bin, libdjvulibre-text