Authenticated kernel-stack disclosure via uninitialized resource
Published Aug 16, 2021 · Updated Sep 17, 2024
Use of uninitialized resource in Dell EMC PowerScale OneFS 8.2.x through 9.1.0.x allows remote authenticated users with console or SSH login privileges to read up to 24 bytes of kernel-stack data via /ifs operations. The vulnerable code uses an uninitialized resource while servicing the /ifs path, allowing residual stack bytes to be returned instead of initialized data. Exploitation requires ISI_PRIV_LOGIN_CONSOLE or ISI_PRIV_LOGIN_SSH access and conditions documented by Dell; the reported impact is limited confidentiality disclosure without integrity or availability effects.
Summary
What happened
Use of uninitialized resource in Dell EMC PowerScale OneFS 8.2.x through 9.1.0.x allows remote authenticated users with console or SSH login privileges to read up to 24 bytes of kernel-stack data via /ifs operations. The vulnerable code uses an uninitialized resource while servicing the /ifs path, allowing residual stack bytes to be returned instead of initialized data. Exploitation requires ISI_PRIV_LOGIN_CONSOLE or ISI_PRIV_LOGIN_SSH access and conditions documented by Dell; the reported impact is limited confidentiality disclosure without integrity or availability effects.
The record
- CVE
- CVE-2021-36282
- Published
- Aug 16, 2021
- Updated
- Sep 17, 2024
- Vendor
- Dell Technologies
- Product
- PowerScale OneFS
- Classifications
- CWE-908, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 16, 2021CVE publishedPublication date reported by the CVE source.
- Sep 17, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=8.2.x - 9.1.0.x
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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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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