CVE-2022-49051

net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup aqc111_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular: - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds, causing OOB reads and (on big-endian systems) OOB endianness flips. - A packet can overlap the metadata array, causing a later OOB endianness flip to corrupt data used by a cloned SKB that has already been handed off into the network stack. - A packet SKB can be constructed whose tail is far beyond its end, causing out-of-bounds heap data to be considered part of the SKB's data. Found doing variant analysis. Tested it with another driver (ax88179_178a), since I don't have a aqc111 device to test it, but the code looks very similar.

N/A

CVSS

Severity:

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593
https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7
https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7
https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080
https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d

Frequently Asked Questions

What is the severity of CVE-2022-49051?: CVE-2022-49051 has not yet been assigned a CVSS score.
How to fix CVE-2022-49051?: To fix CVE-2022-49051, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49051 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49051 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49051?: CVE-2022-49051 affects Linux Linux, Linux Linux.

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