Vulnerability Monitor

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CVE-2019-17346

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.

Published

2019-10-08T01:15:10.830

Last Modified

2024-11-21T04:32:08.133

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	xen	xen	≤ 4.11.2	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	debian	debian_linux	10.0	Yes

References

http://www.openwall.com/lists/oss-security/2019/10/25/5 Mailing List ([email protected])
http://xenbits.xen.org/xsa/advisory-292.html Patch, Vendor Advisory ([email protected])
https://seclists.org/bugtraq/2020/Jan/21 Mailing List, Third Party Advisory ([email protected])
https://www.debian.org/security/2020/dsa-4602 Third Party Advisory ([email protected])
https://xenbits.xen.org/xsa/advisory-292.html Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/10/25/5 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://xenbits.xen.org/xsa/advisory-292.html Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2020/Jan/21 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4602 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://xenbits.xen.org/xsa/advisory-292.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)