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Fencer Intel
high 7.8

CVE-2010-4656 json

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which mig…

published 2011-07-18 15 y ago modified 2026-06-16 4 mo ago also EUVD-2010-4621

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Patch / fix

  • linux linux_kernel 2.6.37
  • kernel RHEL 6 2.6.32-71.24.1.el6
  • perf RHEL 6 2.6.32-71.24.1.el6
  • kernel-kdump RHEL 6 2.6.32-71.24.1.el6
  • kernel-firmware RHEL 6 2.6.32-71.24.1.el6
  • kernel-bootwrapper RHEL 6 2.6.32-71.24.1.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-71.24.1.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-71.24.1.el6
  • kernel-debuginfo-common-s390x RHEL 6 2.6.32-71.24.1.el6

red hat advisories RHSA-2011:0421RHSA-2011:0330

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-2010-4656 updated cvss 6.2

kernel: iowarrior usb device heap overflow

  • Red Hat MRG Realtime for RHEL 5 Server perf 2.6.33.7-rt29.55.el5rt, kernel-rt 2.6.33.7-rt29.55.el5rt, kernel-rt-trace 2.6.33.7-rt29.55.el5rt, kernel-rt-vanilla 2.6.33.7-rt29.55.el5rt, kernel-rt-debuginfo-common 2.6.33.7-rt29.55.el5rt
    fixed: vendor fix RHSA-2011:0330
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more
    fixed: vendor fix RHSA-2011:0421

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

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/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
Technology feeds

References

Sources

Fencer Intel 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.