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Fencer Vulns
medium 6.8

CVE-2009-4067 json

Buffer overflow in the auerswald_probe function in the Auerswald Linux USB driver for the Linux kernel before 2.6.27 allows physically prox…

published 2020-02-11 6 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4038

cvss
6.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
1
Exploit-DB

Summary

Buffer overflow in the auerswald_probe function in the Auerswald Linux USB driver for the Linux kernel before 2.6.27 allows physically proximate attackers to execute arbitrary code, cause a denial of service via a crafted USB device, or take full control of the system.

Patch / fix

  • linux linux_kernel 2.6.27
  • kernel RHEL 5 2.6.18-274.7.1.el5
  • kernel-PAE RHEL 5 2.6.18-274.7.1.el5
  • kernel-xen RHEL 5 2.6.18-274.7.1.el5
  • kernel-kdump RHEL 5 2.6.18-274.7.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-274.7.1.el5

red hat advisories RHSA-2011:1386

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-4067 updated cvss 6.2

kernel: usb: buffer overflow in auerswald_probe()

  • Red Hat Enterprise Linux 4 kernel
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-274.7.1.el5, kernel-PAE 2.6.18-274.7.1.el5, kernel-xen 2.6.18-274.7.1.el5, kernel-kdump 2.6.18-274.7.1.el5, kernel-debuginfo-common 2.6.18-274.7.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-274.7.1.el5, kernel-PAE 2.6.18-274.7.1.el5, kernel-xen 2.6.18-274.7.1.el5, kernel-debuginfo-common 2.6.18-274.7.1.el5
    fixed: vendor fix RHSA-2011:1386
  • Red Hat Enterprise Linux (v. 5 server) kernel-headers 2.6.18-274.7.1.el5 Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux Desktop (v. 5 client) kernel-headers 2.6.18-274.7.1.el5 Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-35957)
  2. Published

Exploit prediction

2.06% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-35957 Linux Kernel 2.6.26 - Auerswald USB Device Driver Buffer Overflow (PoC) dos, 2009-10-19
  • labs.mwrinfosecurity.com http://labs.mwrinfosecurity.com/files/Advisories/mwri_linux-usb-buffer-overflow_2009-10-29.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.