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CVE-2024-34161— NGINX HTTP/3 QUIC vulnerability

Quick assessment

Affected
F5 NGINX Open Source
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

F5 Nginx是美国F5公司的一款轻量级Web服务器/反向代理服务器及电子邮件（IMAP/POP3）代理服务器，在BSD-like协议下发行。 F5 Nginx Plus R30 到 R31、NGINX Open Source 1.25.0 到 1.26.0版本存在安全漏洞，该漏洞源于当NGINX OSS 配置为使用 HTTP/3 QUIC 模块时，且网络基础设施支持最大传输单元 (MTU) 为 4096 或更大时，未公开的 QUIC 数据包可能会导致 NGINX 工作进程泄漏先前释放的内存。

CVSS 5.3 · Medium EPSS 0.87% · P59

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2024-34161

Vulnerability Information
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Vulnerability Title
NGINX HTTP/3 QUIC vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
F5 Nginx 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 Nginx是美国F5公司的一款轻量级Web服务器/反向代理服务器及电子邮件（IMAP/POP3）代理服务器，在BSD-like协议下发行。 F5 Nginx Plus R30 到 R31、NGINX Open Source 1.25.0 到 1.26.0版本存在安全漏洞，该漏洞源于当NGINX OSS 配置为使用 HTTP/3 QUIC 模块时，且网络基础设施支持最大传输单元 (MTU) 为 4096 或更大时，未公开的 QUIC 数据包可能会导致 NGINX 工作进程泄漏先前释放的内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
F5 NGINX Open Source 1.25.0 ~ 1.26.1 -
F5 NGINX Plus R30 ~ R32 -

II. Public POCs for CVE-2024-34161

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III. Intelligence Information for CVE-2024-34161

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Vendor Advisories for CVE-2024-34161 (1)

Mailing List Discussions for CVE-2024-34161 (2)

Same Patch Batch · F5 · 2024-05-29 · 4 CVEs total

CVE-2024-32760 6.5 MEDIUM NGINX HTTP/3 QUIC vulnerability
CVE-2024-35200 5.3 MEDIUM NGINX HTTP/3 QUIC vulnerability
CVE-2024-31079 4.8 MEDIUM NGINX HTTP/3 QUIC vulnerability

IV. Related Vulnerabilities

Same product: NGINX Open Source
Same vendor: F5
Same weakness: CWE-416