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Ubuntu Security Notice USN-5849-1 ≈ Mobile Hacker For Hire

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Ubuntu Security Notice USN-5849-1
February 08, 2023

heimdal vulnerabilities

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

– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 ESM
– Ubuntu 14.04 ESM


Heimdal could be made to crash if it received specially crafted

Software Description:
– heimdal: Heimdal Kerberos Network Authentication Protocol


Helmut Grohne discovered that Heimdal GSSAPI incorrectly handled logical
conditions that are related to memory management operations.
An attacker could possibly use this issue to cause a denial of service.

Update instructions:

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

Ubuntu 20.04 LTS:
libgssapi3-heimdal 7.7.0+dfsg-1ubuntu1.4

Ubuntu 18.04 LTS:
libgssapi3-heimdal 7.5.0+dfsg-1ubuntu0.4

Ubuntu 16.04 ESM:
libgssapi3-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm4

Ubuntu 14.04 ESM:
libgssapi3-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm4

After a standard system update you need to restart any application
using Heimdal libraries to make all the necessary changes.


Package Information:

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