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CVE-2018-19965

Date: December 7, 2018

An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.

Language: C

Severity Score

Related Resources (9)

https://people.canonical.com/~ubuntu-security/cve/CVE-2018-19965
https://xenbits.xen.org/xsa/advisory-279.html
https://www.debian.org/security/2019/dsa-4369
https://support.citrix.com/article/CTX239432
http://www.securityfocus.com/bid/106182
https://nvd.nist.gov/vuln/detail/CVE-2018-19965
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://www.mend.io/vulnerability-database/CVE-2018-19965

Severity Score

Weakness Type (CWE)

Cleansing, Canonicalization, and Comparison Errors

CWE-171

Insufficient Information

NVD-CWE-noinfo

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): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

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

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