CVE-2018-6335

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2018-6335
  • Assigner
  • cve-assign@fb.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-12-31T19:29:00
  • Last Modified Date
  • 2019-10-09T23:41:46
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* 1 OR 3.21.10
cpe:2.3:a:facebook:hhvm:3.24.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:facebook:hhvm:3.25.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://hhvm.com/blog/2018/05/04/hhvm-3.25.3.html Vendor Advisory
https://github.com/facebook/hhvm/commit/4cb57dd753a339654ca464c139db9871fe961d56 Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-6335
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6335
History
Created Old Value New Value Data Type Notes
2022-05-10 17:03:53 Added to TrackCVE
2022-12-03 15:55:05 2018-12-31T19:29Z 2018-12-31T19:29:00 CVE Published Date updated
2022-12-03 15:55:05 2019-10-09T23:41:46 CVE Modified Date updated
2022-12-03 15:55:05 Modified Vulnerability Status updated