CVE-2024-31079: f5 nginx open source Stack-based Buffer Overflow
Vulnerability summary
CVE-2024-31079 is a medium (CVSS 4.8) Stack-based Buffer Overflow vulnerability in f5 nginx open source. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 7Timeline
- 29-05-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.
CVSS metrics
6 scores · 6 sources · 1 version- OSV · AlpineEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- OSV · DebianEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- OSV · WolfiEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- OSV · ChainguardEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
EPSS trend
Probability
0.89%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.89% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Chainguard15 products
- nginx-mainline< 1.27.0-r0
- nginx-mainline-config< 1.27.0-r0
- nginx-mainline-config-compat< 1.27.0-r0
- nginx-mainline-mod-http_geoip< 1.27.0-r0
- nginx-mainline-mod-http_image_filter< 1.27.0-r0
Wolfi15 products
- nginx-mainline< 1.27.0-r0
- nginx-mainline-config< 1.27.0-r0
- nginx-mainline-config-compat< 1.27.0-r0
- nginx-mainline-mod-http_geoip< 1.27.0-r0
- nginx-mainline-mod-http_image_filter< 1.27.0-r0
F52 products
- nginx open source≥ 1.25.0, < 1.26.1
- nginx plus≥ R30, < R32 | r30 | r30:p1 | r30:p2 | r31 | r31:p1
Alpine1 product
- nginxAll versions (No fix recorded)
Debian1 product
- nginx< 1.26.0-2
Fedoraproject1 product
- fedoraEOL39 | 40
6 vendors · 35 products
