Memory DoS via TCP Verified Accept on F5 BIG-IP Virtual Server
CVE-2023-40542 Published on October 10, 2023
BIG-IP TCP Profile vulnerability
When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Vulnerability Analysis
CVE-2023-40542 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2023-40542
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Affected Versions
F5 BIG-IP:- Version 17.1.0 and below * is unaffected.
- Version 16.1.0 and below 16.1.4 is affected.
- Version 15.1.0 and below 15.1.9 is affected.
- Version 14.1.0 and below * is affected.
- Version 13.1.0 and below * is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.