Memory corruption via unchecked CXSPARSE block count
Published Dec 19, 2022 · Updated Apr 15, 2025
Out-of-bounds write in PowerISO 8.3 VHD parsing allows attackers to corrupt memory via a crafted file opened by a victim. The CXSPARSE parser fails to validate the record's Num of blocks value before using it as the loop bound, permitting writes beyond the destination buffer. Triggering requires a user to open the file, after which attacker-controlled writes can crash the PowerISO process or corrupt its memory.
Summary
What happened
Out-of-bounds write in PowerISO 8.3 VHD parsing allows attackers to corrupt memory via a crafted file opened by a victim. The CXSPARSE parser fails to validate the record's Num of blocks value before using it as the loop bound, permitting writes beyond the destination buffer. Triggering requires a user to open the file, after which attacker-controlled writes can crash the PowerISO process or corrupt its memory.
The record
- CVE
- CVE-2022-41992
- Published
- Dec 19, 2022
- Updated
- Apr 15, 2025
- Vendor
- PowerISO Computing, Inc.
- Product
- PowerISO
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 19, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 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?
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- Affected versionversion=PowerISO 8.3
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
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Technologies
Your stack
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Your stack
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