CVE-2020-1900
"HHVM unserialize Property Array Pre-Reservation Vulnerability"
Description
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.
INFO
Published Date :
March 11, 2021, 1:15 a.m.
Last Modified :
March 18, 2021, 2:10 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-1900.
| URL | Resource |
|---|---|
| https://github.com/facebook/hhvm/commit/c1c4bb0cf9e076aafaf4ff3515556ef9faf906f3 | Patch Third Party Advisory |
| https://hhvm.com/blog/2020/06/30/security-update.html | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-1900 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-1900 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 18, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/facebook/hhvm/commit/c1c4bb0cf9e076aafaf4ff3515556ef9faf906f3 No Types Assigned https://github.com/facebook/hhvm/commit/c1c4bb0cf9e076aafaf4ff3515556ef9faf906f3 Patch, Third Party Advisory Changed Reference Type https://hhvm.com/blog/2020/06/30/security-update.html No Types Assigned https://hhvm.com/blog/2020/06/30/security-update.html Vendor Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* versions up to (excluding) 4.32.3 *cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* versions from (including) 4.33.0 up to (excluding) 4.56.1 *cpe:2.3:a:facebook:hhvm:4.57.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.58.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.58.1:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.59.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.60.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.61.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.62.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-1900 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-1900
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.02%
score
0.62307
percentile