CVE-2018-6340 - Vulnerability Details - OpenCVE

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).

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00393.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Facebook	Hhvm

Configuration 1 [-]

OR	cpe:2.3:a:facebook:hhvm::::::::
	cpe:2.3:a:facebook:hhvm:3.30:::::::*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2018-18100	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).

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/facebook/hhvm/commit/4bff3bfbe90d10451e4638c2118d1ad1117bb3e3
https://hhvm.com/blog/2018/12/18/hhvm-3.30.1.html

History

Tue, 06 May 2025 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: facebook

Published: 2018-12-31T22:00:00.000Z

Updated: 2025-05-06T19:00:01.711Z

Reserved: 2018-01-26T00:00:00.000Z

Link: CVE-2018-6340

Vulnrichment

Updated: 2024-08-05T06:01:48.705Z

NVD

Status : Modified

Published: 2018-12-31T22:29:00.327

Modified: 2025-05-06T19:15:54.063

Link: CVE-2018-6340

Redhat

No data.

OpenCVE Enrichment

No data.

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