F5-K000138990
First published: Fri Mar 22 2024(Updated: )
The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| F5 BIG-IP | >=17.1.0<=17.1.1 | 17.1.2 |
| F5 BIG-IP | >=16.1.0<=16.1.4 | 16.1.5 |
| F5 BIG-IP | >=15.1.0<=15.1.10 | |
| F5 BIG-IQ Centralized Management | >=8.1.0<=8.3.0 |
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Reference Links
Frequently Asked Questions
What is the severity of F5-K000138990?
The severity of F5-K000138990 is high due to its potential to cause excessive CPU load on affected instances of `named`.
How do I fix F5-K000138990?
To fix F5-K000138990, upgrade to the recommended versions: BIG-IP 17.1.2, 16.1.5, or ensure your BIG-IP is updated to a version outside the affected range.
What products are affected by F5-K000138990?
F5-K000138990 affects F5 BIG-IP and F5 BIG-IQ Centralized Management within specific version ranges.
What impact does F5-K000138990 have on DNS services?
F5-K000138990 can lead to performance degradation by causing excessive CPU load when processing crafted DNS queries.
Are there any workarounds for F5-K000138990?
There are no documented workarounds for F5-K000138990, and upgrading to a safe version is advised.
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- agent/event
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- agent/source
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- collector/f5-advisory
- source/F5
- alias/CVE-2023-4408
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/f5
- canonical/f5 big-ip
- version/f5 big-ip/17.1.0
- version/f5 big-ip/17.1.1
- version/f5 big-ip/16.1.0
- version/f5 big-ip/16.1.4
- version/f5 big-ip/15.1.0
- version/f5 big-ip/15.1.10
- canonical/f5 big-iq centralized management
- version/f5 big-iq centralized management/8.1.0
- version/f5 big-iq centralized management/8.3.0