vulnerability
Ubuntu: (CVE-2022-49051): linux vulnerability
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 2025-02-26 | 2025-03-03 | 2025-03-19 |
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.
Solution(s)
References
- CVE-2022-49051
- https://attackerkb.com/topics/CVE-2022-49051
- URL-https://git.kernel.org/linus/afb8e246527536848b9b4025b40e613edf776a9d
- URL-https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080
- URL-https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593
- URL-https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d
- URL-https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7
- URL-https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7
- URL-https://www.cve.org/CVERecord?id=CVE-2022-49051

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