CVE Vulnerability

CVE-2020-1898

The fb_unserialize function did not impose a depth limit for nested deserialization. That meant a maliciously constructed string could cause deserialization to recurse, leading to stack exhaustion. 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 NONE

Integrity Impact NONE

Availability Impact PARTIAL

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 NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/facebook/hhvm/commit/1746dfb11fc0048366f34669e74318b8278a684c 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 : 2021-03-17 07:50

NVD link : CVE-2020-1898

Mitre link : CVE-2020-1898

Products Affected
No products.
CWE
CWE-674

Uncontrolled Recursion