CVE-2020-1916

An incorrect size calculation in ldap_escape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4	Patch Third Party Advisory
https://hhvm.com/blog/2020/11/12/security-update.html	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:facebook:hhvm::::::::
	cpe:2.3:a:facebook:hhvm::::::::
	cpe:2.3:a:facebook:hhvm:4.79.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.80.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.81.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.82.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.83.0:::::::*

Information

Published : 2021-03-10 08:15

Updated : 2021-03-17 12:01

NVD link : CVE-2020-1916

Mitre link : CVE-2020-1916

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

facebook

hhvm

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9.8 /10