VulnerabilityModified
CVE-2018-6335
This behavior can lead to denial-of-service.
HIGH 7.5EPSS 1.47%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A Malformed h2 frame can cause 'std::out_of_range' exception when parsing priority meta data. This behavior can lead to denial-of-service. This affects all supported versions of HHVM (3.25.2, 3.24.6, and 3.21.10 and below) when using the proxygen server to handle HTTP2 requests.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.47% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-20
- Affected
- facebook/hhvm
- Source
- cve-assign@fb.com
References
- https://github.com/facebook/hhvm/commit/4cb57dd753a339654ca464c139db9871fe961d56Patch, Third Party Advisory
- https://hhvm.com/blog/2018/05/04/hhvm-3.25.3.htmlVendor Advisory
- https://github.com/facebook/hhvm/commit/4cb57dd753a339654ca464c139db9871fe961d56Patch, Third Party Advisory
- https://hhvm.com/blog/2018/05/04/hhvm-3.25.3.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.