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CVE-2022-48805

net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before 711b6bf3fb052f0a6b5b3205d50e30c0c2980382; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before 63f0cfb36c1f1964a59ce544156677601e2d8740; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before 1668781ed24da43498799aa4f65714a7de201930; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before a0fd5492ee769029a636f1fb521716b022b1423d; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before 758290defe93a865a2880d10c5d5abd288b64b5d; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before ffd0393adcdcefab7e131488e10dcfde5e02d6eb; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before 9681823f96a811268265f35307072ad80713c274; affected e2ca90c276e1fc410d7cd3c1a4eee245ec902a20 before 57bc3d3ae8c14df3ceb4e17d26ddf9eeab304581
Linux / Linuxaffected 3.9; unaffected 0 before 3.9; unaffected 4.9.303 through 4.9.*; unaffected 4.14.268 through 4.14.*; unaffected 4.19.231 through 4.19.*; unaffected 5.4.180 through 5.4.*; unaffected 5.10.101 through 5.10.*; unaffected 5.15.24 through 5.15.*; unaffected 5.16.10 through 5.16.*; unaffected 5.17 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.