VDB
CVE-2020-1899
CVE-2020-1899
PUBLISHED
The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed as if they were static StringData objects. This issue affected HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.
EPSS 0.36% · 58.6th percentile
Risk Scores
EPSS Score
0.36%
58.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | hhvm | 0, 3.11.0+dfsg-1, 3.11.1+dfsg-1 |
| Ubuntu:18.04:LTS | hhvm | *, 3.21.0+dfsg-2, 0 |
Exploit Intelligence
Timeline
- Mar 11, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-1899 third-party-advisory
- https://github.com/facebook/hhvm/commit/1107228a5128d3ca1c4add8ac1635d933cbbe2e9 third-party-advisory
- https://hhvm.com/blog/2020/06/30/security-update.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-1899 third-party-advisory