CVE-2023-30847
CVE-2023-30847 · H2O vulnerable to read from uninitialized pointer in the reverse proxy handler
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.2 · High · EPSS 0.9%
- Published
- Updated
Stack: system
Affected products and versions
h2o
- Versions
- <= 2.3.0-beta2: Affected
No fix published
h2o Ubuntu:Pro:18.04:LTS
- Versions
- 2.2.3+dfsg-2
- 2.2.4+dfsg-1
- 2.2.4+dfsg-1build1
- 2.2.4+dfsg-1ubuntu0.1~esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
h2o Ubuntu:Pro:20.04:LTS
- Versions
- 2.2.5+dfsg2-3
- 2.2.5+dfsg2-3build1
- 2.2.5+dfsg2-3ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
h2o Ubuntu:Pro:22.04:LTS
- Versions
- 2.2.5+dfsg2-6
- 2.2.5+dfsg2-6.1
- 2.2.5+dfsg2-6.1ubuntu1
- 2.2.5+dfsg2-6.1ubuntu2
- 2.2.5+dfsg2-6.1ubuntu2+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
h2o Ubuntu:24.04:LTS
- Versions
- 2.2.5+dfsg2-7
- 2.2.5+dfsg2-8
- 2.2.5+dfsg2-8.1ubuntu1
- 2.2.5+dfsg2-8.1ubuntu2
- 2.2.5+dfsg2-8.1ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published