Vulnerability Monitor

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CVE-2018-19967

An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.

Published

2018-12-08T04:29:00.513

Last Modified

2024-11-21T03:58:54.470

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 6.5 (MEDIUM)

CVSSv2 Vector

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

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

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	xen	xen	≤ 4.11.1	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html ([email protected])
http://www.securityfocus.com/bid/106182 Third Party Advisory, VDB Entry ([email protected])
https://support.citrix.com/article/CTX239432 Third Party Advisory ([email protected])
https://www.debian.org/security/2019/dsa-4369 Third Party Advisory ([email protected])
https://xenbits.xen.org/xsa/advisory-282.html Patch, Vendor Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/106182 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://support.citrix.com/article/CTX239432 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2019/dsa-4369 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://xenbits.xen.org/xsa/advisory-282.html Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)