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Status published
High
CVE-2020-1921
In the crypt function, we attempt to null terminate a...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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0
Affected Vendor
Affected Software
HHVM
Vulnerable Versions:
4.98.1, 4.98.0, 4.97.1, 4.97.0, 4.96.1, 4.96.0, 4.95.1, 4.95.0, 4.94.1, 4.94.0, 4.93.2, 4.81.0, 4.80.2, 4.57.0, 4.56.3, unspecified
Timeline
Official Publish:
March 10th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H