Ubuntu.comUB:CVE-2023-30847CVE-2023-30847
8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
0.002 Low
EPSS
Percentile
58.8%
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.
References
github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33
github.com/h2o/h2o/pull/3229
github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx
launchpad.net/bugs/cve/CVE-2023-30847
nvd.nist.gov/vuln/detail/CVE-2023-30847
security-tracker.debian.org/tracker/CVE-2023-30847
www.cve.org/CVERecord?id=CVE-2023-30847
Related
8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
0.002 Low
EPSS
Percentile
58.8%