Home/CVE/An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of servic
CVE

CVE-2018-19967

An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of servic

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.

MEDIUM · CVSS 6.5 EPSS 0.00072
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

2
xen<= 4.11.1
debian linuxall versions
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Dec 2018 · 04:29 AM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
⚑

Vendor Advisories

9
suse-csafopenSUSE-SU-2024:11520-1
suse-csafopenSUSE-SU-2019:1199-1
suse-csafSUSE-SU-2019:0921-1
suse-csafSUSE-SU-2019:0875-1
suse-csafSUSE-SU-2019:14011-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
http://www.securityfocus.com/bid/106182Third Party AdvisoryVDB Entry
https://support.citrix.com/article/CTX239432Third Party Advisory
https://www.debian.org/security/2019/dsa-4369Third Party Advisory
https://xenbits.xen.org/xsa/advisory-282.htmlPatchVendor Advisory
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