CVE-2024-45397

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Source
https://cve.org/CVERecord?id=CVE-2024-45397
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-45397.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-45397
Aliases
  • GHSA-jf2c-xjcp-wg4c
Downstream
Published
2024-10-11T14:24:57.687Z
Modified
2025-11-30T21:48:33.003326Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
H2O alllows bypassing address-based access control with 0-RTT
Details

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by packets with a spoofed source address. This behavior allows attackers on the network to execute HTTP requests from addresses that are otherwise rejected by the address-based access control. The vulnerability has been addressed in commit 15ed15a. Users may disable the use of TCP FastOpen and QUIC to mitigate the issue.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-284"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45397.json"
}
References

Affected packages

Git / github.com/h2o/h2o

Affected ranges

Type
GIT
Repo
https://github.com/h2o/h2o
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
15ed15a2efb83a77bb4baaa5a119e639c2f6898a

Affected versions

v0.*
v0.9.0
v0.9.1
v0.9.2
v1.*
v1.0.0
v1.0.1
v1.1.0
v1.1.1
v1.2.0
v1.3.0
v1.3.0-beta1
v1.3.1
v1.4.0
v1.4.1
v1.4.2
v1.5.0
v1.5.0-beta1
v1.5.0-beta2
v1.5.0-beta3
v1.5.0-beta4
v1.5.1
v1.5.2
v1.5.3
v1.6.0
v1.6.0-beta1
v1.6.0-beta2
v1.7.0
v1.7.0-beta1
v1.7.0-beta2
v1.7.0-beta3
v1.7.0-beta4
v1.7.0-beta5
v2.*
v2.1.0-beta1
v2.1.0-beta2
v2.1.0-beta3
v2.2.0
v2.2.0-beta1
v2.2.0-beta2
v2.2.0-beta3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-45397.json"