CVE Vulnerability

CVE-2020-1899

The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed as if they were static StringData objects. This issue affected HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/facebook/hhvm/commit/1107228a5128d3ca1c4add8ac1635d933cbbe2e9 Patch Third Party Advisory
https://hhvm.com/blog/2020/06/30/security-update.html Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:facebook:hhvm:4.58.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.58.1:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.59.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.60.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.61.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.62.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.57.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
Information

Published : 2021-03-11 01:15

Updated : 2021-03-18 02:14

NVD link : CVE-2020-1899

Mitre link : CVE-2020-1899

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer