CVE-2022-48805
Linux Kernel USB ax88179 Out-of-Bounds Access Vulnerability
Description
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.
INFO
Published Date :
July 16, 2024, 12:15 p.m.
Last Modified :
July 16, 2024, 1:43 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2022-48805.
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CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 16, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/711b6bf3fb052f0a6b5b3205d50e30c0c2980382 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/63f0cfb36c1f1964a59ce544156677601e2d8740 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1668781ed24da43498799aa4f65714a7de201930 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a0fd5492ee769029a636f1fb521716b022b1423d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/758290defe93a865a2880d10c5d5abd288b64b5d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ffd0393adcdcefab7e131488e10dcfde5e02d6eb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9681823f96a811268265f35307072ad80713c274 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/57bc3d3ae8c14df3ceb4e17d26ddf9eeab304581 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-48805 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-48805
weaknesses.