FKIE_CVE-2018-10901
Vulnerability from fkie_nvd - Published: 2018-07-26 17:29 - Updated: 2024-11-21 03:42
Severity ?
Summary
A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| redhat | enterprise_linux_desktop | 6.0 | |
| redhat | enterprise_linux_server | 6.0 | |
| redhat | enterprise_linux_server_aus | 6.4 | |
| redhat | enterprise_linux_server_aus | 6.5 | |
| redhat | enterprise_linux_server_aus | 6.6 | |
| redhat | enterprise_linux_workstation | 6.0 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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