Bug 2334409 (CVE-2024-53203)

Summary: CVE-2024-53203 kernel: usb: typec: fix potential array underflow in ucsi_ccg_sync_control()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2024-12-27 14:05:07 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: typec: fix potential array underflow in ucsi_ccg_sync_control()

The "command" variable can be controlled by the user via debugfs.  The
worry is that if con_index is zero then "&uc->ucsi->connector[con_index
- 1]" would be an array underflow.
Comment 1 Avinash Hanwate 2024-12-28 10:36:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122727-CVE-2024-53203-80fc@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:37:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966