xend in Xen 3.3.0 does not properly restrict a guest VM's write access within the…
Priority LOW 32CWE-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
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
xend in Xen 3.3.0 does not properly restrict a guest VM's write access within the /local/domain xenstore directory tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue exists because of erroneous set_permissions calls in the fix for CVE-2008-4405.
Why it matters now
EPSS 0.00358 29th 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
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2008-5716
- 2026-10-03 Alias added: GHSA-r6vm-2jmq-5wqx
References
Other 5
- [xen-devel] 20081218 Re: PATCH: Actually make /local/domain/$DOMID readonly to the guest
- [xen-devel] 20081218 Re: PATCH: Actually make /local/domain/$DOMID readonly to the guest
- [xen-devel] 20081218 Re: PATCH: Actually make /local/domain/$DOMID readonly to the guest
- [oss-security] 20081219 CVE Request -- Xen (Upstream patch for CVE-2008-4405 is incomplete)
- [xen-devel] 20081218 PATCH: Actually make /local/domain/$DOMID readonly to the guest
More Citrix Xen vulnerabilities
- TI-2011-01674 Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d… CVSS 2.0HIGH 7.4
- TI-2008-04202 xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore… CVSS 2.0HIGH 7.2
- TI-2011-01402 Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0… CVSS 2.0MEDIUM 6.9
- TI-2010-04004 The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit… CVSS 2.0MEDIUM 6.1
- TI-2010-03988 The vbd_create function in Xen 3.1.2, when the Linux kernel 2.6.18 on Red Hat Enterprise… CVSS 2.0MEDIUM 5.5
- TI-2010-03996 The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2)… CVSS 2.0MEDIUM 5.5
Sources
- CVE-2008-5716 · CVE Program
- CVE-2008-5716 · NVD
- FIRST EPSS
- GHSA-r6vm-2jmq-5wqx · GitHub Advisory Database · CC BY 4.0
- CVE-2008-5716 · Red Hat security data · CC BY 4.0
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