Xorg-x11-server: selinux unlabeled glx pbuffer
Priority LOW 25CWE-158Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 11 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00321 25th percentileScored 2026-11-07
Fix Partial xorg-server: 21.1.11Red Hat: 5 advisoriesRed Hat: 11 fixed, 1 without a fix
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 |
|---|---|---|---|---|---|
| — | xorg-server | 21.1.0 to before 21.1.11 | 21.1.11 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | 1.20.4-27.el7_9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 1.20.11-22.el8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 21.1.3-15.el8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 1.20.11-24.el9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 22.1.9-5.el9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | Not affected | CNA |
- xorg-server Vendor— Affected 21.1.0 to before 21.1.11 Fixed in 21.1.11 Patch available CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in 1.20.4-27.el7_9 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 1.20.11-22.el8 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 21.1.3-15.el8 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 1.20.11-24.el9 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 22.1.9-5.el9 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA
CPE configurations NVD · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:* | before 1.13.1 | Vulnerable | TigerVNC |
| cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* | before 21.1.11 | Vulnerable | x.org |
| cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* | before 23.2.4 | Vulnerable | x.org |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:* Versions before 1.13.1 Vulnerable ·TigerVNC
- cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* Versions before 21.1.11 Vulnerable ·x.org
- cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* Versions before 23.2.4 Vulnerable ·x.org
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
- Fix · CNA xorg-server Fixed in 21.1.11
Red Hat 5 advisories
- RHSA-2024:2996 Released 2024-05-22 · Red Hat rating Moderatexorg-x11-server-Xwayland security update
- Red Hat Enterprise Linux AppStream (v. 8) xorg-x11-server-Xwayland-21.1.3-15.el8
- RHSA-2024:2995 Released 2024-05-22 · Red Hat rating Moderatexorg-x11-server security update
- Red Hat Enterprise Linux AppStream (v. 8) xorg-x11-server-1.20.11-22.el8, xorg-x11-server-Xdmx-1.20.11-22.el8, xorg-x11-server-Xephyr-1.20.11-22.el8 +4
- Red Hat Enterprise Linux CRB (v. 8) xorg-x11-server-devel-1.20.11-22.el8, xorg-x11-server-source-1.20.11-22.el8
- RHSA-2024:2169 Released 2024-04-30 · Red Hat rating Moderatexorg-x11-server security update
- Red Hat Enterprise Linux AppStream (v. 9) xorg-x11-server-1.20.11-24.el9, xorg-x11-server-Xdmx-1.20.11-24.el9, xorg-x11-server-Xephyr-1.20.11-24.el9 +4
- Red Hat Enterprise Linux CRB (v. 9) xorg-x11-server-devel-1.20.11-24.el9, xorg-x11-server-source-1.20.11-24.el9
Show 2 more Red Hat advisories
- RHSA-2024:2170 Released 2024-04-30 · Red Hat rating Moderatexorg-x11-server-Xwayland security update
- Red Hat Enterprise Linux AppStream (v. 9) xorg-x11-server-Xwayland-22.1.9-5.el9
- RHSA-2024:0320 Released 2024-01-22 · Red Hat rating Importantxorg-x11-server security update
- Red Hat Enterprise Linux Client (v. 7) xorg-x11-server-1.20.4-27.el7_9, xorg-x11-server-Xephyr-1.20.4-27.el7_9, xorg-x11-server-Xorg-1.20.4-27.el7_9 +1
- Red Hat Enterprise Linux Client Optional (v. 7) xorg-x11-server-Xdmx-1.20.4-27.el7_9, xorg-x11-server-Xnest-1.20.4-27.el7_9, xorg-x11-server-Xvfb-1.20.4-27.el7_9 +3
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) xorg-x11-server-1.20.4-27.el7_9, xorg-x11-server-Xdmx-1.20.4-27.el7_9, xorg-x11-server-Xephyr-1.20.4-27.el7_9 +7
- Red Hat Enterprise Linux Server (v. 7) xorg-x11-server-1.20.4-27.el7_9, xorg-x11-server-Xephyr-1.20.4-27.el7_9, xorg-x11-server-Xorg-1.20.4-27.el7_9 +1
- Red Hat Enterprise Linux Server Optional (v. 7) xorg-x11-server-Xdmx-1.20.4-27.el7_9, xorg-x11-server-Xnest-1.20.4-27.el7_9, xorg-x11-server-Xvfb-1.20.4-27.el7_9 +4
- Red Hat Enterprise Linux Workstation (v. 7) xorg-x11-server-1.20.4-27.el7_9, xorg-x11-server-Xephyr-1.20.4-27.el7_9, xorg-x11-server-Xorg-1.20.4-27.el7_9 +1
- Red Hat Enterprise Linux Workstation Optional (v. 7) xorg-x11-server-Xdmx-1.20.4-27.el7_9, xorg-x11-server-Xnest-1.20.4-27.el7_9, xorg-x11-server-Xvfb-1.20.4-27.el7_9 +3
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:2995, RHSA-2024:2996 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2169, RHSA-2024:2170 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:2995 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:2169 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2024:0320 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2024:0320 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2024:0320 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2024:0320 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2024:0320 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2024:0320 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2024:0320 |
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-0408
- 2026-10-03 Alias added: GHSA-rcj8-jx65-7c4r
References
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Sources
- CVE-2024-0408 · CVE Program
- CVE-2024-0408 · NVD
- FIRST EPSS
- GHSA-rcj8-jx65-7c4r · GitHub Advisory Database · CC BY 4.0
- CVE-2024-0408 · 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