CVEvulnerability
CVE-2022-49051
6.8 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-02-26
- Last modified
- 2026-08-13
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-125, CWE-787
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.
Affected configurations
• linux linux kernel (>= 5.0 < 5.4.190)
• linux linux kernel (>= 5.5 < 5.10.112)
• linux linux kernel (>= 5.11 < 5.15.35)
• linux linux kernel (>= 5.16 < 5.17.4)
• linux linux kernel 5.18
Related
References
- https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080 Patch
- https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593 Patch
- https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d Patch
- https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7 Patch
- https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7 Patch