CVE Vulnerability

CVE-2020-1918

In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.

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/08193b7f0cd3910256e00d599f0f3eb2519c44ca Patch Third Party Advisory
https://hhvm.com/blog/2021/02/25/security-update.html Release Notes Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:facebook:hhvm:4.95.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.96.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.97.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.98.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:4.94.0:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
Information

Published : 2021-03-10 04:15

Updated : 2021-03-15 03:53

NVD link : CVE-2020-1918

Mitre link : CVE-2020-1918

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read