net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup
ax88179_rx_fixup() contains several out-of-bounds accesses that can be
triggered by a malicious (or defective) USB device, in particular:
- The metadata array (hdr_off..hdr_off+2*pkt_cnt) 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.
I have tested that this can be used by a malicious USB device to send a
bogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in response
that contains random kernel heap data.
It's probably also possible to get OOB writes from this on a
little-endian system somehow - maybe by triggering skb_cow() via IP
options processing -, but I haven't tested that.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Thu, 06 Mar 2025 13:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
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| Metrics |
cvssV3_1
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cvssV3_1
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Wed, 11 Sep 2024 13:30:00 +0000
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ssvc
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Thu, 29 Aug 2024 22:45:00 +0000
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-125 | |
| Metrics |
cvssV3_1
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cvssV3_1
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T18:47:28.683Z
Reserved: 2024-07-16T11:38:08.896Z
Link: CVE-2022-48805
Updated: 2024-08-03T15:25:01.769Z
Status : Analyzed
Published: 2024-07-16T12:15:04.907
Modified: 2025-03-06T12:53:17.520
Link: CVE-2022-48805
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