Kernel memory disclosure and corruption via RNDIS overflow
Published Jan 13, 2023 · Updated May 5, 2025
Buffer overflow in the Linux kernel through 6.1.5 allows local users to read or overwrite kernel memory via a malicious RNDIS USB device. rndis_query_oid converts attacker-controlled unsigned response length and offset fields to signed integers, allowing negative results to bypass bounds checks before memcpy. Exploitation requires attaching or installing a crafted RNDIS wireless USB device, and the resulting copy can disclose memory or corrupt the kernel.
Summary
What happened
Buffer overflow in the Linux kernel through 6.1.5 allows local users to read or overwrite kernel memory via a malicious RNDIS USB device. rndis_query_oid converts attacker-controlled unsigned response length and offset fields to signed integers, allowing negative results to bypass bounds checks before memcpy. Exploitation requires attaching or installing a crafted RNDIS wireless USB device, and the resulting copy can disclose memory or corrupt the kernel.
The record
- CVE
- CVE-2023-23559
- Published
- Jan 13, 2023
- Updated
- May 5, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-190, T1200
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 13, 2023CVE publishedPublication date reported by the CVE source.
- May 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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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