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Ubuntu 18.04: USN-6909-2 Critical: Bind Denial of Service Fix

ubuntu
Calendar Grey August 1, 2024
Dist Ubuntu Esm H88
Numerous vulnerabilities addressed in Bind on Ubuntu, enhancing resilience against threats impacting resource management.
Several security issues were fixed in Bind.

Summary

Several security issues were fixed in Bind.

Software Description:

- bind9: Internet Domain Name Server

Details:

USN-6909-1 fixed several vulnerabilities in Bind. This update provides

the corresponding update for Ubuntu 18.04 LTS.

Original advisory details:

Toshifumi Sakaguchi discovered that Bind incorrectly handled having a very

large number of RRs existing at the same time. A remote attacker could

possibly use this issue to cause Bind to consume resources, leading to a

denial of service. (CVE-2024-1737)

It was discovered that Bind incorrectly handled a large number of SIG(0)

signed requests. A remote attacker could possibly use this issue to cause

Bind to consume resources, leading to a denial of service. (CVE-2024-1975)

Topics%20covered

Topics Covered

security advisory denial of service bind Ubuntu critical update

Update Instructions

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

Ubuntu 18.04 LTS
  bind9                           1:9.11.3+dfsg-1ubuntu1.19+esm4
                                  Available with Ubuntu Pro

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References

https://ubuntu.com/security/notices/USN-6909-2

https://ubuntu.com/security/notices/USN-6909-1

CVE-2024-1737, CVE-2024-1975

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6909-2

Topics%20covered

Topics Covered

security advisory denial of service bind Ubuntu critical update

Package Information

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