An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Link | Tags |
---|---|
http://xenbits.xen.org/xsa/advisory-288.html | vendor advisory |
https://xenbits.xen.org/xsa/advisory-288.html | vendor advisory |
http://www.openwall.com/lists/oss-security/2019/10/25/10 | third party advisory mailing list |
https://www.debian.org/security/2020/dsa-4602 | third party advisory vendor advisory |
https://seclists.org/bugtraq/2020/Jan/21 | third party advisory mailing list |