=========================================================================Ubuntu Security Notice USN-5671-1
October 12, 2022

advancecomp vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

Several security issues were fixed in AdvanceCOMP.

Software Description:
- advancecomp: collection of recompression utilities

Details:

It was discovered that AdvanceCOMP did not properly manage memory of function
be_uint32_read() under certain circumstances. If a user were tricked into
opening a specially crafted binary file, a remote attacker could possibly use
this issue to cause AdvanceCOMP to crash, resulting in a denial of service.
(CVE-2019-8379)

It was discovered that AdvanceCOMP did not properly manage memory of function
adv_png_unfilter_8() under certain circumstances. If a user were tricked into
opening a specially crafted PNG file, a remote attacker could possibly use this
issue to cause AdvanceCOMP to crash, resulting in a denial of service.
(CVE-2019-8383)

Update instructions:

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

Ubuntu 18.04 LTS:
  advancecomp                     2.1-1ubuntu0.18.04.2

Ubuntu 16.04 ESM:
  advancecomp                     1.20-1ubuntu0.2+esm1

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

References:
  https://ubuntu.com/security/notices/USN-5671-1
  CVE-2019-8379, CVE-2019-8383

Package Information:
  https://launchpad.net/ubuntu/+source/advancecomp/2.1-1ubuntu0.18.04.2