Race condition in Linux 2.6, when threads are sharing memory mapping via CLONE_VM (such…
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.
Summary
Race condition in Linux 2.6, when threads are sharing memory mapping via CLONE_VM (such as linuxthreads and vfork), might allow local users to cause a denial of service (deadlock) by triggering a core dump while waiting for a thread that has just performed an exec.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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:2.6.0:*:*:*:*:*:*:* | 2.6.0 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* | 3.1 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:4.10:*:*:*:*:*:*:* | 4.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:5.04:*:*:*:*:*:*:* | 5.04 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:* Versions 2.6.0 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:4.10:*:*:*:*:*:*:* Versions 4.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:5.04:*:*:*:*:*:*:* Versions 5.04 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2006:0101 Released 2006-01-17 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-22.0.2.EL, kernel-2.6.9-22.0.2.EL.ia64, kernel-2.6.9-22.0.2.EL.ppc64iseries +8
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-22.0.2.EL, kernel-devel-2.6.9-22.0.2.EL, kernel-doc-2.6.9-22.0.2.EL +4
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-22.0.2.EL, kernel-2.6.9-22.0.2.EL.ia64, kernel-devel-2.6.9-22.0.2.EL +6
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-22.0.2.EL, kernel-2.6.9-22.0.2.EL.ia64, kernel-devel-2.6.9-22.0.2.EL +6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0101 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0101 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0101 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0101 |
Timeline
- 2026-10-02 Threatist record created from CVE-2005-3106
- 2026-10-03 Alias added: GHSA-fgcr-gvff-j4cq
References
Sources
- CVE-2005-3106 · CVE Program
- CVE-2005-3106 · NVD
- FIRST EPSS
- GHSA-fgcr-gvff-j4cq · GitHub Advisory Database · CC BY 4.0
- CVE-2005-3106 · Red Hat security data · CC BY 4.0
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