CVE-2020-1892

Insufficient boundary checks when decoding JSON in JSON_parser allows read access to out of bounds memory, potentially leading to information leak and DOS. This issue affects HHVM 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versions between 4.33.0 and 4.38.0 (inclusive), versions between 4.9.0 and 4.32.0 (inclusive), and versions prior to 4.8.7.

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.4 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/facebook/hhvm/commit/dabd48caf74995e605f1700344f1ff4a5d83441d	Patch
https://hhvm.com/blog/2020/02/20/security-update.html	Vendor Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:facebook:hhvm::::::::
	cpe:2.3:a:facebook:hhvm::::::::
	cpe:2.3:a:facebook:hhvm::::::::
	cpe:2.3:a:facebook:hhvm:4.39.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.40.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.41.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.42.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.43.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.44.0:::::::*
	cpe:2.3:a:facebook:hhvm:4.45.0:::::::*

Information

Published : 2020-03-03 07:15

Updated : 2020-03-05 12:28

NVD link : CVE-2020-1892

Mitre link : CVE-2020-1892

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

facebook

hhvm

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