The IA32 system call emulation functionality in arch/x86/ia32/ia32entry.S in the Linux…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-269.
Summary
The IA32 system call emulation functionality in arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.36-rc4-git2 on the x86_64 platform does not zero extend the %eax register after the 32-bit entry path to ptrace is used, which allows local users to gain privileges by triggering an out-of-bounds access to the system call table using the %rax register. NOTE: this vulnerability exists because of a CVE-2007-4573 regression.
Why it matters now
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.36 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.36:-:*:*:*:*:*:* | 2.6.36 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.36:rc1:*:*:*:*:*:* | 2.6.36 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.36:rc2:*:*:*:*:*:* | 2.6.36 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.36:rc3:*:*:*:*:*:* | 2.6.36 rc3 | Vulnerable | Linux |
| cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp1:*:*:*:*:*:* | 11 sp1 | Vulnerable | SUSE |
| cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* | 9.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* | 10.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* | 10.10 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.36 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.36:-:*:*:*:*:*:* Versions 2.6.36 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.36:rc1:*:*:*:*:*:* Versions 2.6.36 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.36:rc2:*:*:*:*:*:* Versions 2.6.36 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.36:rc3:*:*:*:*:*:* Versions 2.6.36 rc3 Vulnerable ·Linux
- cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
- cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* Versions 9.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* Versions 10.10 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2010:0842 Released 2010-11-10 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-71.7.1.el6, kernel-debug-2.6.32-71.7.1.el6, kernel-debug-devel-2.6.32-71.7.1.el6 +5
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-71.7.1.el6, kernel-debug-2.6.32-71.7.1.el6, kernel-debug-devel-2.6.32-71.7.1.el6 +5
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-71.7.1.el6, kernel-bootwrapper-2.6.32-71.7.1.el6, kernel-debug-2.6.32-71.7.1.el6 +8
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-71.7.1.el6, kernel-debug-2.6.32-71.7.1.el6, kernel-debug-devel-2.6.32-71.7.1.el6 +5
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2010:0842 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2010:0842 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2010:0842 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2010:0842 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-3301
- 2026-10-03 Alias added: GHSA-79mw-6jhw-7997
- 2026-10-21 EPSS moved to the 90th–95th percentile
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
Patch 2
Advisory 10
Other 3
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.log
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=eefdca043e8391dcd719711716492063030b55ac
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=36d001c70d8a0144ac1d038f6876c484849a74de
Sources
- CVE-2010-3301 · CVE Program
- CVE-2010-3301 · NVD
- FIRST EPSS
- GHSA-79mw-6jhw-7997 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-3301 · 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