CVE-2018-6340

CVSS V2 Medium 6.8 CVSS V3 High 8.1
Description
The Memcache::getextendedstats function can be used to trigger an out-of-bounds read. Exploiting this issue requires control over memcached server hostnames and/or ports. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).
Overview
  • CVE ID
  • CVE-2018-6340
  • Assigner
  • cve-assign@fb.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-12-31T22:29:00
  • Last Modified Date
  • 2019-10-09T23:41:46
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* 1 OR 3.27.4
cpe:2.3:a:facebook:hhvm:3.30:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.1
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.2
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://hhvm.com/blog/2018/12/18/hhvm-3.30.1.html Third Party Advisory
https://github.com/facebook/hhvm/commit/4bff3bfbe90d10451e4638c2118d1ad1117bb3e3 Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-6340
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6340
History
Created Old Value New Value Data Type Notes
2022-05-10 17:03:52 Added to TrackCVE
2022-12-03 15:55:15 2018-12-31T22:29Z 2018-12-31T22:29:00 CVE Published Date updated
2022-12-03 15:55:15 2019-10-09T23:41:46 CVE Modified Date updated
2022-12-03 15:55:15 Modified Vulnerability Status updated