VDB
CVE-2020-1921
CVE-2020-1921
PUBLISHED
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.
EPSS 0.59% · 69.7th percentile
Risk Scores
EPSS Score
0.59%
69.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | hhvm | 0, 3.21.0+dfsg-2build1, 3.21.0+dfsg-2build3 |
| Ubuntu:16.04:LTS | hhvm | 3.11.0+dfsg-1, 3.11.1+dfsg-1ubuntu1, 0 |
Exploit Intelligence
Timeline
- Mar 10, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-1921 third-party-advisory
- https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca third-party-advisory
- https://hhvm.com/blog/2021/02/25/security-update.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-1921 third-party-advisory