CVE-2019-17346

high

Description

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 because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.

References

http://www.openwall.com/lists/oss-security/2019/10/25/5

http://xenbits.xen.org/xsa/advisory-292.html

https://xenbits.xen.org/xsa/advisory-292.html

Details

Source: MITRE

Published: 2019-10-08

Updated: 2019-10-25

Type: CWE-20

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 2

Severity: HIGH