Guest-to-hypervisor disclosure via uninitialized Toolgate memory
Published Apr 29, 2021 · Updated Aug 3, 2024
Information disclosure in Parallels Desktop 15.1.4-47270 allows local users in a guest system to read uninitialized hypervisor memory. The Toolgate component accesses memory before properly initializing it, exposing residual sensitive data across the guest-to-hypervisor boundary. Low-privileged guest code is required; the disclosure alone does not execute code, but it can support a chained hypervisor compromise.
Summary
What happened
Information disclosure in Parallels Desktop 15.1.4-47270 allows local users in a guest system to read uninitialized hypervisor memory. The Toolgate component accesses memory before properly initializing it, exposing residual sensitive data across the guest-to-hypervisor boundary. Low-privileged guest code is required; the disclosure alone does not execute code, but it can support a chained hypervisor compromise.
The record
- CVE
- CVE-2021-31419
- Published
- Apr 29, 2021
- Updated
- Aug 3, 2024
- Vendor
- Parallels
- Product
- Parallels Desktop
- Classifications
- CWE-908, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 29, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=15.1.4-47270
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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