{"cve":"CVE-2022-48805","nvd":{"published":"2024-07-16T12:15:04.907","modified":"2026-06-17T05:16:14.360","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup\n\nax88179_rx_fixup() contains several out-of-bounds accesses that can be\ntriggered by a malicious (or defective) USB device, in particular:\n\n - The metadata array (hdr_off..hdr_off+2*pkt_cnt) can be out of bounds,\n   causing OOB reads and (on big-endian systems) OOB endianness flips.\n - A packet can overlap the metadata array, causing a later OOB\n   endianness flip to corrupt data used by a cloned SKB that has already\n   been handed off into the network stack.\n - A packet SKB can be constructed whose tail is far beyond its end,\n   causing out-of-bounds heap data to be considered part of the SKB's\n   data.\n\nI have tested that this can be used by a malicious USB device to send a\nbogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in response\nthat contains random kernel heap data.\nIt's probably also possible to get OOB writes from this on a\nlittle-endian system somehow - maybe by triggering skb_cow() via IP\noptions processing -, but I haven't tested that.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/1668781ed24da43498799aa4f65714a7de201930","https://git.kernel.org/stable/c/57bc3d3ae8c14df3ceb4e17d26ddf9eeab304581","https://git.kernel.org/stable/c/63f0cfb36c1f1964a59ce544156677601e2d8740","https://git.kernel.org/stable/c/711b6bf3fb052f0a6b5b3205d50e30c0c2980382","https://git.kernel.org/stable/c/758290defe93a865a2880d10c5d5abd288b64b5d"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:42.518321223+00:00"},"epss":{"cve":"CVE-2022-48805","score":0.00318,"percentile":0.24818,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}