Alerts This Week
Warning Icon 1 485
Alerts This Week
Warning Icon 1 485

Ubuntu 20.04 LTS: USN-5850-1 Severe OpenSSL Vulnerability Mitigation

ubuntu
Calendar Grey February 8, 2023
Dist Ubuntu Esm H88
Heimdal security flaws in Ubuntu systems could lead to denial of service through specially designed inputs. Apply updates to reduce vulnerabilities.
Heimdal could be made to crash if it received specially crafted input.

Summary

Heimdal could be made to crash if it received specially crafted

input.

Software Description:

- heimdal: Heimdal Kerberos Network Authentication Protocol

Details:

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.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu Heimdal

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.

References

https://ubuntu.com/security/notices/USN-5849-1

CVE-2022-45142

Severity
important
Lowest
Low
Medium
High
Critical

February 08, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu Heimdal

Package Information

https://launchpad.net/ubuntu/+source/heimdal/7.7.0+dfsg-1ubuntu1.4
https://launchpad.net/ubuntu/+source/heimdal/7.5.0+dfsg-1ubuntu0.4

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here