7.5

CVE-2020-1921

In the crypt function, we attempt to null terminate a buffer using the size of the input salt without validating that the offset is within the 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.

Data is provided by the National Vulnerability Database (NVD)
Facebook ≫ Hhvm Version < 4.56.3
Facebook ≫ Hhvm Version >= 4.57.0 < 4.80.2
Facebook ≫ Hhvm Version >= 4.81.0 < 4.93.2
Facebook ≫ Hhvm Version4.94.0
Facebook ≫ Hhvm Version4.95.0
Facebook ≫ Hhvm Version4.96.0
Facebook ≫ Hhvm Version4.97.0
Facebook ≫ Hhvm Version4.98.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.59% 0.685
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-121 Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.