CVE-2019-19583
Summary
| CVE | CVE-2019-19583 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2019-12-11 18:16:00 UTC |
| Updated | 2023-11-07 03:07:00 UTC |
| 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. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 10.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Operating System | Fedoraproject | Fedora | 30 | All | All | All |
| Operating System | Fedoraproject | Fedora | 31 | All | All | All |
| Operating System | Fedoraproject | Fedora | 31 | All | All | All |
| Operating System | Opensuse | Leap | 15.1 | All | All | All |
| Operating System | Xen | Xen | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Debian -- Security Information -- DSA-4602-1 xen | DEBIAN | www.debian.org | |
| Xen: Multiple vulnerabilities (GLSA 202003-56) — Gentoo security | GENTOO | security.gentoo.org | |
| [SECURITY] Fedora 31 Update: xen-4.12.1-8.fc31 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | Mailing List, Third Party Advisory |
| [SECURITY] Fedora 30 Update: xen-4.11.3-2.fc30 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] Fedora 31 Update: xen-4.12.1-8.fc31 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| [security-announce] openSUSE-SU-2020:0011-1: important: Security update | SUSE | lists.opensuse.org | |
| Bugtraq: [SECURITY] [DSA 4602-1] xen security update | BUGTRAQ | seclists.org | |
| XSA-308 - Xen Security Advisories | MISC | xenbits.xen.org | Patch, Vendor Advisory |
| [SECURITY] Fedora 30 Update: xen-4.11.3-2.fc30 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.