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Ubuntu 18.04 ESM USN-6035-1 Critical: KAuth Denial of Service

ubuntu
Calendar Grey April 20, 2023
Dist Ubuntu Esm H88
KAuth weakness in Ubuntu may lead to system instability or unauthorized code execution through specially designed inputs. Make sure to update immediately.
KAuth could be made to crash or run programs if it received specially crafted input.

Summary

KAuth could be made to crash or run programs if it received specially crafted

input.

Software Description:

- kauth: Abstraction to system policy and authentication features

Details:

It was discovered that KAuth incorrectly handled some configuration parameterswith specially crafted arbitrary types. An attacker could possibly use this

issue to cause a denial of service, or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service critical vulnerability ubuntu kauth

Update Instructions

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

Ubuntu 18.04 ESM:
  libkf5auth-data                 5.44.0-0ubuntu1+esm1
  libkf5auth5                     5.44.0-0ubuntu1+esm1

Ubuntu 16.04 ESM:
  libkf5auth-data                 5.18.0-0ubuntu2+esm1
  libkf5auth5                     5.18.0-0ubuntu2+esm1

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

References

https://ubuntu.com/security/notices/USN-6035-1

CVE-2019-7443

Severity
critical
Lowest
Low
Medium
High
Critical

April 20, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical vulnerability ubuntu kauth

Package Information

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