Home/CVE/An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS pri
CVE

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 pri

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.

HIGH · CVSS 7.8 EPSS 0.00181
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

3
xen<= 4.11.1
debian linuxall versions
citrix xenserverall versions
▣

Scoring & Timeline

7.8
HIGH · 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:H/PR:L/UI:N/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

8
suse-csafSUSE-SU-2019:14011-1
suse-csafSUSE-SU-2019:0825-1
suse-csafSUSE-SU-2019:0827-1
suse-csafSUSE-SU-2019:0020-1
suse-csafSUSE-SU-2019:0003-1
🔗

References & Sources

7
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/msg00072.html
http://www.securityfocus.com/bid/106182Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/
https://support.citrix.com/article/CTX239432Third Party Advisory
https://www.debian.org/security/2019/dsa-4369Third Party Advisory
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