CVE-2021-21987
VMware Cortado ThinPrint TTC Parser Out-of-Bounds Read Vulnerability
Description
VMware Workstation (16.x prior to 16.1.2) and Horizon Client for Windows (5.x prior to 5.5.2) contain out-of-bounds read vulnerability in the Cortado ThinPrint component (TTC Parser). A malicious actor with access to a virtual machine or remote desktop may be able to exploit these issues leading to information disclosure from the TPView process running on the system where Workstation or Horizon Client for Windows is installed.
INFO
Published Date :
May 24, 2021, 12:15 p.m.
Last Modified :
June 4, 2021, 7:32 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.0
Public PoC/Exploit Available at Github
CVE-2021-21987 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-21987.
| URL | Resource |
|---|---|
| https://www.vmware.com/security/advisories/VMSA-2021-0009.html | Patch Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-608/ | Third Party Advisory VDB Entry |
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).
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The following list is the news that have been mention
CVE-2021-21987 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21987 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]
Jun. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Changed Reference Type https://www.vmware.com/security/advisories/VMSA-2021-0009.html No Types Assigned https://www.vmware.com/security/advisories/VMSA-2021-0009.html Patch, Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-608/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-608/ Third Party Advisory, VDB Entry Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.1.2 Added CPE Configuration AND OR *cpe:2.3:a:vmware:horizon_client:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.5.2 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 25, 2021
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-608/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21987 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-2021-21987
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12654
percentile