Kernel memory disclosure via unchecked IOCTL input
Published Mar 23, 2020 · Updated Aug 4, 2024
Out-of-bounds read in the IOCTL handler in Parallels Desktop 15.1.2-47123 allows local users to disclose host kernel memory. The handler accepts user-supplied data without validating its bounds, causing a read beyond an allocated buffer in the host kernel module. Exploitation requires low-privileged local code execution; the direct consequence is kernel-memory disclosure, which can assist a separate kernel-code-execution chain.
Summary
What happened
Out-of-bounds read in the IOCTL handler in Parallels Desktop 15.1.2-47123 allows local users to disclose host kernel memory. The handler accepts user-supplied data without validating its bounds, causing a read beyond an allocated buffer in the host kernel module. Exploitation requires low-privileged local code execution; the direct consequence is kernel-memory disclosure, which can assist a separate kernel-code-execution chain.
The record
- CVE
- CVE-2020-8876
- Published
- Mar 23, 2020
- Updated
- Aug 4, 2024
- Vendor
- Parallels
- Product
- Parallels Desktop
- Classifications
- CWE-129, CWE-125, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 23, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 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=15.1.2-47123
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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