CVE catalog
CVE-2018-6332
UBUNTU-CVE-2018-6332
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.09% · Oct 25, 2026
A potential denial-of-service issue in the Proxygen handling of invalid HTTP2 settings which can cause the server to spend disproportionate resources. This affects all supported versions of HHVM (3.24.3 and 3.21.7 and below) when using the proxygen server to handle HTTP2 requests.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | hhvm | 16.04 | 3.11.0+dfsg-1 | vulnerable |
| Ubuntu | hhvm | 16.04 | 3.11.1+dfsg-1 | vulnerable |
| Ubuntu | hhvm | 16.04 | 3.11.1+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | hhvm | 18.04 | 3.21.0+dfsg-2 | vulnerable |
| Ubuntu | hhvm | 18.04 | 3.21.0+dfsg-2build1 | vulnerable |
| Ubuntu | hhvm | 18.04 | 3.21.0+dfsg-2build2 | vulnerable |
| Ubuntu | hhvm | 18.04 | 3.21.0+dfsg-2build3 | vulnerable |
| Ubuntu | hhvm | 18.04 | 3.21.0+dfsg-2ubuntu2 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: