8.2

CVE-2023-30847

H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request  number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later.

Data is provided by the National Vulnerability Database (NVD)
DenaH2o Version <= 2.2.6
DenaH2o Version2.3.0 Updatebeta1
DenaH2o Version2.3.0 Updatebeta2
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.26% 0.492
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.2 3.9 4.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
security-advisories@github.com 8.2 3.9 4.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CWE-824 Access of Uninitialized Pointer

The product accesses or uses a pointer that has not been initialized.