The do_change_type function in fs/namespace.c in the Linux kernel before 2.6.22 does not…
Priority LOW 34CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- 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-269.
Summary
The do_change_type function in fs/namespace.c in the Linux kernel before 2.6.22 does not verify that the caller has the CAP_SYS_ADMIN capability, which allows local users to gain privileges or cause a denial of service by modifying the properties of a mountpoint.
Why it matters now
EPSS 0.00375 31st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.22 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Debian |
| cpe:2.3:o:novell:suse_linux_enterprise_desktop:10.0:sp1:*:*:*:*:*:* | 10.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_desktop:10.0:sp2:*:*:*:*:*:* | 10.0 sp2 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:10.0:sp1:*:*:*:*:*:* | 10.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:10.0:sp2:*:*:*:*:*:* | 10.0 sp2 | Vulnerable | Novell |
| cpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:* | 10.3 – 11.0 | Vulnerable | openSUSE |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:* | 7.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* | 7.10 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.22 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
- cpe:2.3:o:novell:suse_linux_enterprise_desktop:10.0:sp1:*:*:*:*:*:* Versions 10.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_desktop:10.0:sp2:*:*:*:*:*:* Versions 10.0 sp2 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:10.0:sp1:*:*:*:*:*:* Versions 10.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:10.0:sp2:*:*:*:*:*:* Versions 10.0 sp2 Vulnerable ·Novell
- cpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:* Versions 10.3 – 11.0 Vulnerable ·openSUSE
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:* Versions 7.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* Versions 7.10 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2008:0885 Released 2008-09-24 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-92.1.13.el5, kernel-2.6.18-92.1.13.el5.ia64, kernel-PAE-2.6.18-92.1.13.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-92.1.13.el5, kernel-PAE-2.6.18-92.1.13.el5, kernel-PAE-devel-2.6.18-92.1.13.el5 +8
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2008:0885 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2008:0885 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-2931
- 2026-10-03 Alias added: GHSA-qrf3-cqg5-vv53
References
Advisory 9
- RHSA-2008:0885
- SUSE-SA:2008:038
- USN-637-1
- oval:org.mitre.oval:def:10437
- SUSE-SA:2008:035
- [oss-security] 20080708 Re: CVE-2008-2931 kernel: missing check before setting mount propagation
- [oss-security] 20080708 CVE-2008-2931 kernel: missing check before setting mount propagation
- SUSE-SA:2008:049
- SUSE-SR:2008:025
Sources
- CVE-2008-2931 · CVE Program
- CVE-2008-2931 · NVD
- FIRST EPSS
- GHSA-qrf3-cqg5-vv53 · GitHub Advisory Database · CC BY 4.0
- CVE-2008-2931 · 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