Service interrupt via incorrect crypto buffer advance
Published Jun 19, 2024 · Updated May 12, 2026
Out-of-bounds pointer arithmetic in the Linux kernel Broadcom SPU2 driver allows local users to interrupt service on an affected system. In spu2_dump_omd(), the output-metadata pointer advances by ciph_key_len instead of hash_iv_len, allowing it to move beyond the buffer boundary. Exploitation requires local authenticated access and code that reaches the driver diagnostic path; no confidentiality or integrity effect is reported.
Summary
What happened
Out-of-bounds pointer arithmetic in the Linux kernel Broadcom SPU2 driver allows local users to interrupt service on an affected system. In spu2_dump_omd(), the output-metadata pointer advances by ciph_key_len instead of hash_iv_len, allowing it to move beyond the buffer boundary. Exploitation requires local authenticated access and code that reaches the driver diagnostic path; no confidentiality or integrity effect is reported.
The record
- CVE
- CVE-2024-38579
- Published
- Jun 19, 2024
- Updated
- May 12, 2026
- Vendor
- Siemens
- Product
- SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
- Classifications
- CWE-20, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 19, 2024CVE publishedPublication date reported by the CVE source.
- May 12, 2026Record 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=0 <*
What conditions does exploitation require?
What is affected?
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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