USN-4957-2: DjVuLibre vulnerabilities

Releases

• Ubuntu 16.04 ESM

Packages

• djvulibre - DjVu image format library and tools

Details

USN-4957-1 fixed several vulnerabilities in DjVuLibre. This update provides
the corresponding update for Ubuntu 16.04 ESM.

Original advisory 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 16.04

• libdjvulibre21 - 3.5.27.1-5ubuntu0.1+esm1
  Available with Ubuntu Pro

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

References

• CVE-2021-32491
• CVE-2021-32492
• CVE-2021-32493
• CVE-2021-32490
• CVE-2021-3500

Related notices

• USN-4957-1: djview3, libdjvulibre-text, djvuserve, djview, libdjvulibre-dev, djvulibre-desktop, djvulibre, libdjvulibre21, djvulibre-bin