CVE-2024-34161: f5 nginx open source Use After Free
CVSS: 5.3v3.1MediumAnalyzed
AliasesALPINE-CVE-2024-34161DEBIAN-CVE-2024-34161CGA-2j5p-wqhg-7jx9CGA-344w-c2fv-xwfrCGA-34px-vhqf-mgvxCGA-3w55-qqw5-p23cCGA-47qq-59rf-3wf7CGA-5rrv-mjfp-237hCGA-9hjr-wc48-4g8hCGA-c454-3639-qg52CGA-c6g5-x348-hxgpCGA-cj28-h4vx-q85vCGA-f6pc-73mj-cvfpCGA-g38p-r54m-wm5wCGA-h8hh-g76w-v574CGA-j6xq-qww2-p99qCGA-jf9p-8q6v-49rmCGA-jgpj-q423-f96wCGA-jj32-c24w-4j92CGA-m7w6-9mj3-5g4rCGA-mq34-pg5q-w44xCGA-qgr4-cxwc-h7cpCGA-qw4h-w35g-9hrgCGA-r9cw-79v2-gww5CGA-rgxg-9c54-7mqgCGA-vh9w-qg5w-5mq5CGA-vv4m-8x78-8mv3CGA-wc3r-4vxg-2fc6CGA-wj6h-9cx7-2fh4CGA-wvqw-g4p2-x7cwCGA-wxvf-x53h-rpvpCGA-xwfc-hj8j-q8ch
Published 29-05-2024Last modified 13-02-2025
Vulnerability summary
CVE-2024-34161 is a medium (CVSS 5.3) Use After Free vulnerability in f5 nginx open source. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 57.9% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.87%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
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 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.
CVSS metrics
6 scores · 6 sources · 1 versionMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSourcesAll 6 agree
- OSV · AlpineEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · WolfiEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · ChainguardEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.87%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
0.00 pp
From 0.87% on 18-09-2026
18-09-202618-10-2026
EPSS score0.87%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected 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
