Test Kennung:	1.3.6.1.4.1.25623.1.0.704236
Kategorie:	Debian Local Security Checks
Titel:	Debian Security Advisory DSA 4236-1 (xen - security update)
Zusammenfassung:	Multiple vulnerabilities have been discovered in the Xen hypervisor:;;CVE-2018-12891;It was discovered that insufficient validation of PV MMU operations;may result in denial of service.;;CVE-2018-12892It was discovered that libxl fails to honour the readonly;flag on;HVM-emulated SCSI disks.;;CVE-2018-12893;It was discovered that incorrect implementation of debug exception;checks could result in denial of service.
Beschreibung:	Summary: Multiple vulnerabilities have been discovered in the Xen hypervisor: CVE-2018-12891 It was discovered that insufficient validation of PV MMU operations may result in denial of service. CVE-2018-12892It was discovered that libxl fails to honour the readonly flag on HVM-emulated SCSI disks. CVE-2018-12893 It was discovered that incorrect implementation of debug exception checks could result in denial of service. Affected Software/OS: xen on Debian Linux Solution: For the stable distribution (stretch), these problems have been fixed in version 4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u9. We recommend that you upgrade your xen packages. CVSS Score: 6.5 CVSS Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2018-12891 Common Vulnerability Exposure (CVE) ID: CVE-2018-12892 Common Vulnerability Exposure (CVE) ID: CVE-2018-12893
Copyright	Copyright (C) 2018 Greenbone Networks GmbH

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