CVE-2022-30283
First published: Tue Nov 15 2022(Updated: )
In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges The UsbCoreDxe module creates a working buffer for USB transactions outside of SMRAM. The code which uses can be inside of SMM, making the working buffer untrusted input. The buffer can be corrupted by DMA transfers. The SMM code code attempts to sanitize pointers to ensure all pointers refer to the working buffer, but when a pointer is not found in the list of pointers to sanitize, the current action is not aborted, leading to undefined behavior. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in: Kernel 5.0: Version 05.09. 21 Kernel 5.1: Version 05.17.21 Kernel 5.2: Version 05.27.21 Kernel 5.3: Version 05.36.21 Kernel 5.4: Version 05.44.21 Kernel 5.5: Version 05.52.21 https://www.insyde.com/security-pledge/SA-2022063
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Insyde Kernel | >=5.0<5.0.05.09.21 | |
| Insyde Kernel | >=5.1<5.1.05.17.21 | |
| Insyde Kernel | >=5.2<5.2.05.27.21 | |
| Insyde Kernel | >=5.3<5.3.05.36.21 | |
| Insyde Kernel | >=5.4<5.4.05.44.21 | |
| Insyde Kernel | >=5.5<5.5.05.52.21 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-30283?
CVE-2022-30283 is a vulnerability in UsbCoreDxe that allows an attacker to tamper with the USB working buffer using DMA, leading to potential SMRAM corruption and privilege escalation.
Which software is affected by CVE-2022-30283?
The Insyde Kernel versions 5.0 through 5.5 are affected by CVE-2022-30283.
How severe is CVE-2022-30283?
CVE-2022-30283 has a severity rating of 7.5 (high).
What is the Common Weakness Enumeration (CWE) ID associated with CVE-2022-30283?
CVE-2022-30283 is associated with CWE-367.
How can CVE-2022-30283 be mitigated?
To mitigate CVE-2022-30283, it is recommended to apply the necessary patches and updates provided by Insyde.
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