Code execution via uninitialized H3D parser index
Published Dec 13, 2022 · Updated Apr 16, 2025
Use of uninitialized memory in Altair Engineering HyperView Player 2021.1.0.27 and earlier allows attackers to execute code via crafted H3D files. The H3D parser sign-extends a DWORD read from an uninitialized buffer and uses it as a stack-variable index while incrementing a counter, corrupting memory. Exploitation requires a user to open an attacker-supplied H3D file; successful corruption permits code execution in the application process.
Summary
What happened
Use of uninitialized memory in Altair Engineering HyperView Player 2021.1.0.27 and earlier allows attackers to execute code via crafted H3D files. The H3D parser sign-extends a DWORD read from an uninitialized buffer and uses it as a stack-variable index while incrementing a counter, corrupting memory. Exploitation requires a user to open an attacker-supplied H3D file; successful corruption permits code execution in the application process.
The record
- CVE
- CVE-2022-2949
- Published
- Dec 13, 2022
- Updated
- Apr 16, 2025
- Vendor
- Altair Engineering
- Product
- HyperView Player
- Classifications
- CWE-908, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 13, 2022CVE publishedPublication date reported by the CVE source.
- Apr 16, 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=0 <=2021.1.0.27
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
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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