CVE-2019-17342 (NVD)

2019-10-08

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 a race condition that arose when XENMEM_exchange was introduced.

Products Debian_linux, Xen
Type Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CWE-362)
First patch - None (likely due to unavailable code)
Links https://xenbits.xen.org/xsa/advisory-287.html
http://xenbits.xen.org/xsa/advisory-287.html
http://www.openwall.com/lists/oss-security/2019/10/25/2
https://www.debian.org/security/2020/dsa-4602
https://seclists.org/bugtraq/2020/Jan/21