CVE-2021-21987: VMware Workstation ThinPrint TTCHeader Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Mon May 24 2021(Updated: )
This vulnerability allows local attackers to disclose sensitive information on affected installations of VMware Workstation. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the ThinPrint component. Crafted data in a font file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor.
Credit: security@vmware.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| VMware Workstation | >=16.0.0<16.1.2 | |
| Vmware Horizon Client | >=5.0.0<5.5.2 | |
| Microsoft Windows | ||
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Reference Links
Frequently Asked Questions
What is CVE-2021-21987?
CVE-2021-21987 is a vulnerability in VMware Workstation that allows local attackers to disclose sensitive information.
How does CVE-2021-21987 impact VMware Workstation?
CVE-2021-21987 allows local attackers to disclose sensitive information on affected installations of VMware Workstation.
What is the severity of CVE-2021-21987?
The severity of CVE-2021-21987 is medium with a CVSS score of 6.5.
How can CVE-2021-21987 be exploited?
Attackers must first obtain the ability to execute low-privileged code on the target guest system in order to exploit CVE-2021-21987.
Are there any patches or fixes available for CVE-2021-21987?
Yes, VMware has released security advisories and patches to address CVE-2021-21987. Please refer to the official VMware security advisory for more information.
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