Note:
This project will be discontinued after December 13, 2021. [more]
2018-01-05
In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.
| Products | Xen |
| Type | Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) |
| First patch | - None (likely due to unavailable code) |
| Links |
• http://www.securitytracker.com/id/1040774
• https://security.gentoo.org/glsa/201810-06 • https://xenbits.xen.org/xsa/advisory-253.html • http://www.securityfocus.com/bid/102433 |