CVE-2022-48805 | In the Linux kernel, the following vulnerability has been resolved: 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, cau
In the Linux kernel, the following vulnerability has been resolved:
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.
- 🔗 git.kernel.org/stable/c/711b6bf3fb052f0a6b5b3205d50e30c0…
- 🔗 git.kernel.org/stable/c/63f0cfb36c1f1964a59ce54415667760…
- 🔗 git.kernel.org/stable/c/1668781ed24da43498799aa4f65714a7…
- 🔗 git.kernel.org/stable/c/a0fd5492ee769029a636f1fb521716b0…
- 🔗 git.kernel.org/stable/c/758290defe93a865a2880d10c5d5abd2…
- 🔗 git.kernel.org/stable/c/ffd0393adcdcefab7e131488e10dcfde…
- 🔗 git.kernel.org/stable/c/9681823f96a811268265f35307072ad8…
- 🔗 git.kernel.org/stable/c/57bc3d3ae8c14df3ceb4e17d26ddf9ee…
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CVE-2022-48805 | In the Linux kernel, the following vulnerability has been resolved: 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, cau
In the Linux kernel, the following vulnerability has been resolved: 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 defecti