net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize certain data…
Priority LOW 25CWE-665Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize certain data structures, which allows local users to obtain potentially sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability for an ethtool ioctl call.
Why it matters now
EPSS 0.00397 34th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 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
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.36 | Vulnerable | Linux |
| cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | VMware |
| cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | VMware |
| cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* | 8.04 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.36 Vulnerable ·Linux
- cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·VMware
- cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·VMware
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
Remediation
Red Hat 4 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
- RHSA-2011:0303 Released 2011-03-01 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux (v. 5.6.z server) kernel-2.6.18-238.5.1.el5, kernel-2.6.18-238.5.1.el5.ia64, kernel-PAE-2.6.18-238.5.1.el5 +18
Show 1 more Red Hat advisories
- RHSA-2011:0263 Released 2011-02-16 · Red Hat rating ImportantRed Hat Enterprise Linux 4.9 kernel security and bug fix update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-100.EL, kernel-2.6.9-100.EL.ia64, kernel-2.6.9-100.EL.ppc64iseries +14
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-100.EL, kernel-devel-2.6.9-100.EL, kernel-doc-2.6.9-100.EL +8
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-100.EL, kernel-2.6.9-100.EL.ia64, kernel-devel-2.6.9-100.EL +12
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-100.EL, kernel-2.6.9-100.EL.ia64, kernel-devel-2.6.9-100.EL +12
Vendor assessments
Red Hat
Red Hat rating: Low. 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 (v. 5.6.z server) | Fixed | RHSA-2011:0303 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2011:0263 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2011:0263 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2011:0263 |
| 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 WS version 4 | Fixed | RHSA-2011:0263 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0421 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-4655
- 2026-10-03 Alias added: GHSA-c9rp-95rg-526v
References
Patch 7
- [oss-security] 20110124 CVE request: linux kernel heap issues
- [oss-security] 20110125 Re: CVE request: linux kernel heap issues
- [oss-security] 20110124 Re: CVE request: linux kernel heap issues
- [oss-security] 20110125 Re: CVE request: linux kernel heap issues
- [oss-security] 20110128 Re: CVE request: linux kernel heap issues
- https://bugzilla.redhat.com/show_bug.cgi?id=672428
- [linux-kernel] 20101007 [PATCH] net: clear heap allocations for privileged ethtool actions
Sources
- CVE-2010-4655 · CVE Program
- CVE-2010-4655 · NVD
- FIRST EPSS
- GHSA-c9rp-95rg-526v · GitHub Advisory Database · CC BY 4.0
- CVE-2010-4655 · 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