The backend for XenSource Xen Para Virtualized Frame Buffer (PVFB) in Xen ioemu does not…
Priority LOW 11CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
The backend for XenSource Xen Para Virtualized Frame Buffer (PVFB) in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service (crash) by mapping an arbitrary amount of guest memory.
Why it matters now
EPSS 0.00379 32nd 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
Remediation
Red Hat 1 advisory
- RHSA-2008:0892 Released 2008-10-01 · Red Hat rating Importantxen security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) xen-3.0.3-64.el5_2.3, xen-libs-3.0.3-64.el5_2.3, xen-libs-3.0.3-64.el5_2.3.i386 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) xen-3.0.3-64.el5_2.3, xen-libs-3.0.3-64.el5_2.3, xen-libs-3.0.3-64.el5_2.3.i386
- Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) xen-3.0.3-64.el5_2.3, xen-3.0.3-64.el5_2.3.i386, xen-devel-3.0.3-64.el5_2.3 +1
- Red Hat Enterprise Linux Virtualization (v. 5 server) xen-3.0.3-64.el5_2.3, xen-3.0.3-64.el5_2.3.i386, xen-3.0.3-64.el5_2.3.ia64 +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 (v. 5 server) | Fixed | RHSA-2008:0892 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2008:0892 |
| Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) | Fixed | RHSA-2008:0892 |
| Red Hat Enterprise Linux Virtualization (v. 5 server) | Fixed | RHSA-2008:0892 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1952
- 2026-10-03 Alias added: GHSA-9fj9-7hv4-wf6g
References
Sources
- CVE-2008-1952 · CVE Program
- CVE-2008-1952 · NVD
- FIRST EPSS
- GHSA-9fj9-7hv4-wf6g · GitHub Advisory Database · CC BY 4.0
- CVE-2008-1952 · 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