VDB
CVE-2020-1900
CVE-2020-1900
PUBLISHED
When unserializing an object with dynamic properties HHVM needs to pre-reserve the full size of the dynamic property array before inserting anything into it. Otherwise the array might resize, invalidating previously stored references. This pre-reservation was not occurring in 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 0.81% · 74.5th percentile
Risk Scores
EPSS Score
0.81%
74.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | hhvm | 0, 3.11.1+dfsg-1ubuntu1, * |
| Ubuntu:18.04:LTS | hhvm | *, 0, * |
Exploit Intelligence
Timeline
- Mar 11, 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-2020-1900 third-party-advisory
- https://github.com/facebook/hhvm/commit/c1c4bb0cf9e076aafaf4ff3515556ef9faf906f3 third-party-advisory
- https://hhvm.com/blog/2020/06/30/security-update.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-1900 third-party-advisory