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CVE-2019-19583
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
An issue was discovered in Xen through 4.12.x allowing x86 HVM/PVH guest OS users to cause a denial of service (guest OS crash) because VMX VMEntry checks mishandle a certain case. Please see XSA-260 for background on the MovSS shadow. Please see XSA-156 for background on the need for #DB interception. The VMX VMEntry checks do not like the exact combination of state which occurs when #DB in intercepted, Single Stepping is active, and blocked by STI/MovSS is active, despite this being a legitimate state to be in. The resulting VMEntry failure is fatal to the guest. HVM/PVH guest userspace code may be able to crash the guest, resulting in a guest Denial of Service. All versions of Xen are affected. Only systems supporting VMX hardware virtual extensions (Intel, Cyrix, or Zhaoxin CPUs) are affected. Arm and AMD systems are unaffected. Only HVM/PVH guests are affected. PV guests cannot leverage the vulnerability.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
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OR
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
Changed
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
OR
*cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Changed
Reference Type
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html No Types Assigned
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/ Mailing List, Third Party Advisory
Changed
Reference Type
https://seclists.org/bugtraq/2020/Jan/21 No Types Assigned
https://seclists.org/bugtraq/2020/Jan/21 Mailing List, Third Party Advisory
Changed
Reference Type
https://security.gentoo.org/glsa/202003-56 No Types Assigned
https://security.gentoo.org/glsa/202003-56 Third Party Advisory
Changed
Reference Type
https://www.debian.org/security/2020/dsa-4602 No Types Assigned
https://www.debian.org/security/2020/dsa-4602 Third Party Advisory
OR
*cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions from (including) 4.8.0 up to (including) 4.12.1
Added
CVSS V2
NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added
CWE
NIST CWE-20
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/ Mailing List, Third Party Advisory
Changed
Reference Type
https://xenbits.xen.org/xsa/advisory-308.html No Types Assigned