NGINX QUIC Packet Leak: Undisclosed QUIC Causes Worker Process Memory Leak
CVE-2024-34161 Published on May 29, 2024
NGINX HTTP/3 QUIC vulnerability
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or greater without fragmentation, undisclosed QUIC packets can cause NGINX worker processes to leak previously freed memory.
Vulnerability Analysis
CVE-2024-34161 can be exploited 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 a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2024-34161 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2024-34161
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Affected Versions
F5 NGINX Open Source:- Version 1.25.0 and below 1.26.1 is affected.
- Version R30 and below R32 is affected.
- Version r30, <= r31 is affected.
- Version 1.25.0, <= 1.26.0 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.