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CVE-2018-19967

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Date: December 7, 2018

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.

Language: C

Severity Score

Related Resources (9)

https://www.debian.org/security/2019/dsa-4369
https://support.citrix.com/article/CTX239432
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html
http://www.securityfocus.com/bid/106182
https://xenbits.xen.org/xsa/advisory-282.html
https://nvd.nist.gov/vuln/detail/CVE-2018-19967
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-19967
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
https://www.mend.io/vulnerability-database/CVE-2018-19967

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

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

CVSS v2

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

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