Vulnerability Monitor

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CVE-2018-19962

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 small IOMMU mappings are unsafely combined into larger ones.

Published

2018-12-08T04:29:00.297

Last Modified

2024-11-21T03:58:53.687

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.8 (HIGH)

CVSSv2 Vector

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

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

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-200

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
Application	citrix	xenserver	7.0	Yes
Application	citrix	xenserver	7.1	Yes
Application	citrix	xenserver	7.5	Yes
Application	citrix	xenserver	7.6	Yes

References

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://lists.debian.org/debian-lts-announce/2019/10/msg00008.html ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ ([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-275.html Patch, Vendor Advisory ([email protected])
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://lists.debian.org/debian-lts-announce/2019/10/msg00008.html (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ (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-275.html Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)