CVE-2010-4255
Last modified
CVE-2010-4255 is a vulnerability of currently unknown severity. The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
Description
The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Citrix | Xen | <= 4.0.1 |
| Citrix | Xen | 3.0.2 |
| Citrix | Xen | 3.0.3 |
| Citrix | Xen | 3.0.4 |
| Citrix | Xen | 3.1.2 |
| Citrix | Xen | 3.1.3 |
| Citrix | Xen | 3.1.4 |
| Citrix | Xen | 3.2.0 |
| Citrix | Xen | 3.2.1 |
| Citrix | Xen | 3.2.2 |
| Citrix | Xen | 3.2.3 |
| Citrix | Xen | 3.3.0 |
| Citrix | Xen | 3.3.1 |
| Citrix | Xen | 3.3.2 |
| Citrix | Xen | 3.4.0 |
| Citrix | Xen | 3.4.1 |
| Citrix | Xen | 3.4.2 |
| Citrix | Xen | 3.4.3 |
| Citrix | Xen | 4.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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