VDB
CVE-2020-1921
CVE-2020-1921
PUBLISHED
CVSS 7.5 HIGH
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 1.21% · 66.0th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
1.21%
66.0th 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 |
Timeline
- Mar 10, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Jul 5, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
- Nov 8, 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