The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not…
Priority LOW 21CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user_transition_deny and user_transition_allow rules for the (1) sys_setfsuid and (2) sys_setfsgid calls, which allows local users to bypass restrictions for those calls.
Why it matters now
EPSS 0.00323 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33:*:*:*:*:*:*:* | 2.4.33 | Vulnerable | Grsecurity |
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.2:*:*:*:*:*:*:* | 2.4.33.2 | Vulnerable | Grsecurity |
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.3:*:*:*:*:*:*:* | 2.4.33.3 | Vulnerable | Grsecurity |
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.4:*:*:*:*:*:*:* | 2.4.33.4 | Vulnerable | Grsecurity |
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.34:*:*:*:*:*:*:* | 2.4.34 | Vulnerable | Grsecurity |
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.6.18:*:*:*:*:*:*:* | 2.6.18 | Vulnerable | Grsecurity |
| cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.6.24.4:*:*:*:*:*:*:* | 2.6.24.4 | Vulnerable | Grsecurity |
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33:*:*:*:*:*:*:* Versions 2.4.33 Vulnerable ·Grsecurity
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.2:*:*:*:*:*:*:* Versions 2.4.33.2 Vulnerable ·Grsecurity
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.3:*:*:*:*:*:*:* Versions 2.4.33.3 Vulnerable ·Grsecurity
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.4:*:*:*:*:*:*:* Versions 2.4.33.4 Vulnerable ·Grsecurity
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.34:*:*:*:*:*:*:* Versions 2.4.34 Vulnerable ·Grsecurity
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.6.18:*:*:*:*:*:*:* Versions 2.6.18 Vulnerable ·Grsecurity
- cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.6.24.4:*:*:*:*:*:*:* Versions 2.6.24.4 Vulnerable ·Grsecurity
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1940
- 2026-10-03 Alias added: GHSA-42w7-p64v-gxj9
References
More Grsecurity Kernel Patch vulnerabilities
- TI-2007-00248 Unspecified vulnerability in the expand_stack function in grsecurity PaX allows local… CVSS 3.1HIGH 7.8
- TI-2007-00244 Unspecified vulnerability in the grsecurity patch has unspecified impact and remote… CVSS 2.0HIGH 7.2
- TI-2006-00219 The RBAC functionality in grsecurity before 2.1.8 does not properly handle when the admin… CVSS 2.0HIGH 7.2
- TI-2002-01745 grsecurity 1.9.4 for Linux kernel 2.4.18 allows local users to bypass read-only… CVSS 2.0MEDIUM 4.6
Sources
- CVE-2008-1940 · CVE Program
- CVE-2008-1940 · NVD
- FIRST EPSS
- GHSA-42w7-p64v-gxj9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences