CVE-2013-1917
Last modified
CVE-2013-1917 is a vulnerability of currently unknown severity. Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 3.1.3 |
| Xen | Xen | 3.1.4 |
| Xen | Xen | 3.2.0 |
| Xen | Xen | 3.2.1 |
| Xen | Xen | 3.2.2 |
| Xen | Xen | 3.2.3 |
| Xen | Xen | 3.3.0 |
| Xen | Xen | 3.3.1 |
| Xen | Xen | 3.3.2 |
| Xen | Xen | 3.4.0 |
| Xen | Xen | 3.4.1 |
| Xen | Xen | 3.4.2 |
| Xen | Xen | 3.4.3 |
| Xen | Xen | 3.4.4 |
| Xen | Xen | 4.0.0 |
| Xen | Xen | 4.0.1 |
| Xen | Xen | 4.0.2 |
| Xen | Xen | 4.0.3 |
| Xen | Xen | 4.0.4 |
| Xen | Xen | 4.1.0 |
| Xen | Xen | 4.1.1 |
| Xen | Xen | 4.1.2 |
| Xen | Xen | 4.1.3 |
| Xen | Xen | 4.1.4 |
| Xen | Xen | 4.2.0 |
| Xen | Xen | 4.2.1 |
| Xen | Xen | 4.2.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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