Use After Free in F5 Nginx Open Source
CVE-2024-34161
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 class: Use-After-Free
EPSS: 0.009 (55.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- F5 Nginx Open Source — versions 1.25.0
- F5 Nginx_open_source
- F5 Nginx Plus — versions R30
- F5 Nginx_plus — versions r30, r31
- Fedoraproject Fedora — versions 39, 40
Weakness classification (CWE)
References
- f5sirt@f5.com (vendor-advisory, Vendor Advisory)
- f5sirt@f5.com (Third Party Advisory)
- f5sirt@f5.com (Mailing List)
- f5sirt@f5.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2024-34161?
- CVE-2024-34161 is a medium-severity vulnerability in F5 Nginx Open Source, classified under Use After Free. CVSS score: 5.3/10. Published 2024-05-29.
- How severe is CVE-2024-34161?
- Medium severity. CVSS v3 base score is 5.3 out of 10.