Kernel information disclosure via array overread
Published Jan 11, 2022 · Updated Jan 2, 2025
Out-of-bounds read in Microsoft Windows Storage Spaces Controller allows local users to disclose sensitive kernel data via crafted input. The spaceport.sys driver insufficiently validates user-supplied data and reads past the end of an allocated array. Successful exploitation requires low-privileged local code execution; the disclosure can support a separate privilege-escalation chain but does not itself grant SYSTEM access.
Summary
What happened
Out-of-bounds read in Microsoft Windows Storage Spaces Controller allows local users to disclose sensitive kernel data via crafted input. The spaceport.sys driver insufficiently validates user-supplied data and reads past the end of an allocated array. Successful exploitation requires low-privileged local code execution; the disclosure can support a separate privilege-escalation chain but does not itself grant SYSTEM access.
The record
- CVE
- CVE-2022-21877
- Published
- Jan 11, 2022
- Updated
- Jan 2, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125, CAPEC-540, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 11, 2022CVE publishedPublication date reported by the CVE source.
- Jan 2, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.2452
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
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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