The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before…
Priority LOW 34CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
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.
Why it matters now
EPSS 0.00396 34th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2011:0421 Released 2011-04-08 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6, kernel-debug-devel-2.6.32-71.24.1.el6 +4
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6, kernel-debug-devel-2.6.32-71.24.1.el6 +4
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-71.24.1.el6, kernel-bootwrapper-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6 +7
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6, kernel-debug-devel-2.6.32-71.24.1.el6 +4
- RHSA-2011:0330 Released 2011-03-10 · Red Hat rating Importantkernel-rt security and bug fix update
- MRG Realtime for RHEL 5 Server kernel-rt-2.6.33.7-rt29.55.el5rt, kernel-rt-debug-2.6.33.7-rt29.55.el5rt, kernel-rt-debug-devel-2.6.33.7-rt29.55.el5rt +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| MRG Realtime for RHEL 5 Server | Fixed | RHSA-2011:0330 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0421 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-4656
- 2026-10-03 Alias added: GHSA-5jgm-4h75-c4h8
References
Patch 4
Advisory 1
Sources
- CVE-2010-4656 · CVE Program
- CVE-2010-4656 · NVD
- FIRST EPSS
- GHSA-5jgm-4h75-c4h8 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-4656 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences