What is the severity of F5-K000140745?

The severity of F5-K000140745 is considered high due to its potential to exhaust resolver CPU resources.

How do I fix F5-K000140745?

To fix F5-K000140745, upgrade to the recommended versions of F5 BIG-IP (DNS) that are not affected.

Which versions of F5 BIG-IP (DNS) are affected by F5-K000140745?

F5-K000140745 affects F5 BIG-IP (DNS) versions 17.1.0 to 17.1.1, 16.1.0 to 16.1.5, and 15.1.0 to 15.1.10.

What types of attacks can exploit F5-K000140745?

F5-K000140745 can be exploited by sending a stream of SIG(0) signed requests to exhaust CPU resources.

Is there a workaround for F5-K000140745?

There are no documented workarounds for F5-K000140745; upgrading to a secure version is necessary.

Vulnerability/
F5-K000140745

high

22/8/2024

5/12/2024

F5-K000140745

First published: Thu Aug 22 2024(Updated: )

If a server hosts a zone containing a "KEY" Resource Record, or a resolver DNSSEC-validates a "KEY" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG(0) signed requests. This issue affects BIND 9 versions 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1.

Affected Software	Affected Version	How to fix
F5 BIG-IP DNS	>=17.1.0<=17.1.1	17.1.2
F5 BIG-IP DNS	>=16.1.0<=16.1.5
F5 BIG-IP DNS	>=15.1.0<=15.1.10

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Reference Links

https://my.f5.com/manage/s/article/K000140745

Frequently Asked Questions

What is the severity of F5-K000140745?
The severity of F5-K000140745 is considered high due to its potential to exhaust resolver CPU resources.
How do I fix F5-K000140745?
To fix F5-K000140745, upgrade to the recommended versions of F5 BIG-IP (DNS) that are not affected.
Which versions of F5 BIG-IP (DNS) are affected by F5-K000140745?
F5-K000140745 affects F5 BIG-IP (DNS) versions 17.1.0 to 17.1.1, 16.1.0 to 16.1.5, and 15.1.0 to 15.1.10.
What types of attacks can exploit F5-K000140745?
F5-K000140745 can be exploited by sending a stream of SIG(0) signed requests to exhaust CPU resources.
Is there a workaround for F5-K000140745?
There are no documented workarounds for F5-K000140745; upgrading to a secure version is necessary.

agent/severity
agent/references
agent/first-publish-date
agent/event
agent/type
agent/description
agent/last-modified-date
agent/softwarecombine
agent/source
agent/tags
collector/f5-advisory
source/F5
alias/CVE-2024-1975
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/f5
canonical/f5 big-ip dns
version/f5 big-ip dns/17.1.0
version/f5 big-ip dns/17.1.1
version/f5 big-ip dns/16.1.0
version/f5 big-ip dns/16.1.5
version/f5 big-ip dns/15.1.0
version/f5 big-ip dns/15.1.10

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