A Xcftools security update has been released for Ubuntu Linux 16.04 ESM, 18.04 LTS, and 20.04 LTS.

USN-5988-1: Xcftools vulnerabilities

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Ubuntu Security Notice USN-5988-1
March 29, 2023

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

Xcftools could be made to crash or run programs as an administrator
if it opened a specially crafted file.

Software Description:
- xcftools: command-line tools for extracting data for XCF files

Details:

It was discovered that integer overflows vulnerabilities existed in Xcftools.
An attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2019-5086, CVE-2019-5087)

Update instructions:

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

Ubuntu 20.04 LTS:
xcftools 1.0.7-6ubuntu0.20.04.1

Ubuntu 18.04 LTS:
xcftools 1.0.7-6ubuntu0.1

Ubuntu 16.04 ESM:
xcftools 1.0.7-5ubuntu0.1~esm1

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

References:
  https://ubuntu.com/security/notices/USN-5988-1
CVE-2019-5086, CVE-2019-5087

Package Information:
  https://launchpad.net/ubuntu/+source/xcftools/1.0.7-6ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/xcftools/1.0.7-6ubuntu0.1