net: usb: aqc111: Fix out-of-bounds accesses in RX fixup (Linux Linux)

CVE-2022-49051
MEDIUM 6.8

At a glance

Source
NVD
EPSS
EPSS 0.44 % · percentile 38 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup aqc111_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular: - The metadata array (desc_offset..desc_offset+2*pkt_count) 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. Found doing variant analysis. Tested it with another driver (ax88179_178a), since I don't have a aqc111 device to test it, but the code looks very similar.

Weaknesses (CWE)

  • CWE-125 — Out-of-bounds Read
  • CWE-787 — Out-of-bounds Write

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.8CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 361459cd9642631f048719169da9ef14cbf4a932 < 404998a137bcb8a926f7c949030afbe285472593 ; affected 361459cd9642631f048719169da9ef14cbf4a932 < d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7 ; affected 361459cd9642631f048719169da9ef14cbf4a932 < b416898442f2b6aa9f1b2f2968ce07e3abaa05f7 ; affected 361459cd9642631f048719169da9ef14cbf4a932 < 36311fe98f55dea9200c69e2dd6d6ddb8fc94080 ; affected 361459cd9642631f048719169da9ef14cbf4a932 < afb8e246527536848b9b4025b40e613edf776a9d
Linux · Linuxaffected 5.0 ; unaffected 0 < 5.0 ; unaffected 5.4.190 ≤ 5.4.* ; unaffected 5.10.112 ≤ 5.10.* ; unaffected 5.15.35 ≤ 5.15.* ; unaffected 5.17.4 ≤ 5.17.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD