CVE-2020-1921

State: Published
Severity: Not scored
Published: Mar 10, 2021
Updated: Aug 4, 2024
Reserved: Dec 2, 2019

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.

Scores

The record has no CVSS score.

Weaknesses

CWE-121 Stack-based Buffer Overflow (CWE-121)

Affected Products

Product	Versions
HHVMFacebook	4.98.1 to before unspecifiedNot affected 4.98.0Affected 4.97.1 to before unspecifiedNot affected 4.97.0Affected 4.96.1 to before unspecifiedNot affected 4.96.0Affected 4.95.1 to before unspecifiedNot affected 4.95.0Affected 4.94.1 to before unspecifiedNot affected 4.94.0Affected 4.93.2 to before unspecifiedNot affected 4.81.0 to before unspecifiedAffected 4.80.2 to before unspecifiedNot affected 4.57.0 to before unspecifiedAffected 4.56.3 to before unspecifiedNot affected before 4.56.3Affected

Product

Versions

HHVMFacebook

4.98.1 to before unspecifiedNot affected
4.98.0Affected
4.97.1 to before unspecifiedNot affected
4.97.0Affected
4.96.1 to before unspecifiedNot affected
4.96.0Affected
4.95.1 to before unspecifiedNot affected
4.95.0Affected
4.94.1 to before unspecifiedNot affected
4.94.0Affected
4.93.2 to before unspecifiedNot affected
4.81.0 to before unspecifiedAffected
4.80.2 to before unspecifiedNot affected
4.57.0 to before unspecifiedAffected
4.56.3 to before unspecifiedNot affected
before 4.56.3Affected

References

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