--- cve: "CVE-2022-48805" severity: "LOW" cvss: 3.1 epss: "32%" vendor: "Linux" kev: false exploited: false published: "2024-07-16 12:15:04" tags: [cve, security, low] source: tsecurity.de CVE-Dossier exported: "2026-09-14T08:58:10+02:00" --- # CVE-2022-48805 > 3.1 LOW ## Beschreibung 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. ## Patch verfügbar (OSV) - Kernel ≥ 4.9.303 - Kernel ≥ 4.14.268 - Kernel ≥ 4.19.231 - Kernel ≥ 5.4.180 - Kernel ≥ 5.10.101 - Kernel ≥ 5.15.24 - Kernel ≥ 5.16.10 ## Referenzen - - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-48805) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_