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CVE-2018-19962

Date: December 7, 2018

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.

Language: C

Severity Score

Related Resources (12)

https://www.debian.org/security/2019/dsa-4369
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-19962
https://support.citrix.com/article/CTX239432
https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html
https://xenbits.xen.org/xsa/advisory-275.html
https://security-tracker.debian.org/tracker/CVE-2018-19962
http://www.securityfocus.com/bid/106182
https://nvd.nist.gov/vuln/detail/CVE-2018-19962
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
https://access.redhat.com/security/cve/CVE-2018-19962
https://www.mend.io/vulnerability-database/CVE-2018-19962

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Permissions, Privileges, and Access Control

CWE-264

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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