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Ubuntu 16.04 LTS USN-6909-3: Critical Vulnerabilities in Bind9 Service

ubuntu
Calendar Grey August 15, 2024
Dist Ubuntu Esm H88
Investigate the recent Bind security patches in Ubuntu; key vulnerabilities resolved, potential performance effects, and recommended actions detailed.
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 vulnerabilities in Bind. This update provides

the corresponding updates for Ubuntu 16.04 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 critical update ubuntu

Update Instructions

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

Ubuntu 16.04 LTS
   bind9 1:9.10.3.dfsg.P4-8ubuntu1.19+esm9
                                   Available with Ubuntu Pro

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

References

  https://ubuntu.com/security/notices/USN-6909-3

  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-6909-3

Topics%20covered

Topics Covered

security advisory denial of service bind critical update ubuntu

Package Information

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