1. Ubuntu Security Notices
  2. USN-4957-2

USN-4957-2: DjVuLibre vulnerabilities

Publication date

18 May 2021

Overview

Several security issues were fixed in DjVuLibre.

Releases

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 xenial libdjvulibre21 –  3.5.27.1-5ubuntu0.1+esm1  

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References

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