CVE-2018-19961

Published: Dec 8, 2018Modified: Nov 21, 2024

7.8

Vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitability: 1.1 / Impact: 6.0

Source: NVD

Description

An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.

Affected (6)

Products: Xen: Xen · Debian: Debian Linux · Citrix: Xenserver

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Xen Xen	Up to 4.11.1

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 9.0

Configuration C

4 vulnerable

Vulnerable Software	Affected Versions
Citrix Xenserver	Version 7.0
Citrix Xenserver	Version 7.1 cu1
Citrix Xenserver	Version 7.5
Citrix Xenserver	Version 7.6

Related CWEs

CWE-459

Incomplete Cleanup

The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

References (14)

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html

Source: cve@mitre.org

http://www.securityfocus.com/bid/106182

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/

Source: cve@mitre.org

https://support.citrix.com/article/CTX239432

Source: cve@mitre.org

Third Party Advisory

https://www.debian.org/security/2019/dsa-4369

Source: cve@mitre.org

Third Party Advisory

https://xenbits.xen.org/xsa/advisory-275.html

Source: cve@mitre.org

PatchVendor Advisory

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html