SUSE SLES11 Security Update : xen (SUSE-SU-2018:1203-1) (Meltdown)

This update for xen fixes several issues. These security issues were fixed : - CVE-2018-8897: Prevent mishandling of debug exceptions on x86 XSA-260, bsc1090820 - Handle HPET timers in IO-APIC mode correctly to prevent malicious or buggy HVM guests from causing a hypervisor crash or potentially...

SUSE SLES12 Security Update : xen (SUSE-SU-2018:1177-1) (Meltdown)

This update for xen fixes several issues. These security issues were fixed : - CVE-2018-8897: Prevent mishandling of debug exceptions on x86 XSA-260, bsc1090820 - Handle HPET timers in IO-APIC mode correctly to prevent malicious or buggy HVM guests from causing a hypervisor crash or potentially...

SUSE SLES11 Security Update : xen (SUSE-SU-2018:1181-1) (Meltdown)

This update for xen fixes several issues. These security issues were fixed : - CVE-2018-8897: Prevent mishandling of debug exceptions on x86 XSA-260, bsc1090820 - Handle HPET timers in IO-APIC mode correctly to prevent malicious or buggy HVM guests from causing a hypervisor crash or potentially...

Citrix XenServer Multiple Security Updates

Description of Problem A number of security vulnerabilities have been identified in Citrix XenServer that may allow malicious code running in a PV guest VM to compromise the host and malicious privileged code running in an HVM guest VM to crash the host. These vulnerabilities affect all currently...

Fedora 27 : xen (2018-604574c943)

Information leak via crafted user-supplied CDROM XSA-258 1571867 x86: PV guest may crash Xen with XPTI XSA-259 1571878 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and...

UBUNTU-CVE-2018-10471

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service out-of-bounds zero write and hypervisor crash via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754...

CVE-2018-10471

Technical details for CVE-2018-10471 are not provided in the connected documents. Monitor for updates from Xen security advisories and vendor/maintainer advisories for affected versions and fixes.

CVE-2018-10471

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service out-of-bounds zero write and hypervisor crash via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754...

x86: PV guest may crash Xen with XPTI

ISSUE DESCRIPTION The workaround for the Meltdown vulnerability XSA-254 failed to deal with an error code path connecting the INT 80 handling with general exception handling. This results in an unconditional write attempt of the value zero to an address near 2^64, in cases where a PV guest has no...

Denial of service

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service host OS CPU hang via non-preemptable L3/L4 pagetable freeing...

CVE-2018-7540

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service host OS CPU hang via non-preemptable L3/L4 pagetable freeing...

DoS via non-preemptable L3/L4 pagetable freeing

ISSUE DESCRIPTION Guests have the ability to request removal of memory from themselves. This operation is intended to be requested for normal read/write pages, but is also permitted to be used on other types of pages. So far this in particular included pages pinned to their current type, with the...

SUSE-SU-2018:0472-1 Security update for xen

This update for xen fixes several issues. These security issues were fixed: - CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks via side effects of speculative execution, aka 'Spectre' and 'Meltdown' attacks bsc1074562, bsc1068032 - CVE-2017-15595: x86 PV guest OS users were...

kernel security and bug fix update

2.6.32-696.20.1.OL6 - Update genkey bug 25599697 2.6.32-696.20.1 - x86 kaiser/efi: unbreak tboot Waiman Long 1519799 1519802 CVE-2017-5754 - x86 pti/mm: Fix trampoline stack problem with XEN PV Waiman Long 1519799 1519802 CVE-2017-5754 - x86 pti/mm: Fix XEN PV boot failure Waiman Long 1519799...

Fedora 27 : xen (2017-333ea49a63)

xen: various flaws 1490884 Missing NUMA node parameter verification XSA-231, CVE-2017-14316 Missing check for grant table XSA-232, CVE-2017-14318 cxenstored: Race in domain cleanup XSA-233, CVE-2017-14317 insufficient grant unmapping checks for x86 PV guests XSA-234, CVE-2017-14319 Note that...

Fedora 27 : xen (2017-5945560816)

another patch related to the XSA-240, CVE-2017-15595 issue x86 PV guests may gain access to internally used page XSA-248 broken x86 shadow mode refcount overflow check XSA-249 improper x86 shadow mode refcount error handling XSA-250 improper bug check in x86 log-dirty handling XSA-251 Note that...

CVE-2017-17566

An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service host OS crash or gain host OS privileges in shadow mode by mapping a certain auxiliary page...

CVE-2017-17565

An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service host OS crash if shadow mode and log-dirty mode are in place, because of an incorrect assertion related to M2P...

CVE-2017-17566

An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service host OS crash or gain host OS privileges in shadow mode by mapping a certain auxiliary page...

CVE-2017-17565

An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service host OS crash if shadow mode and log-dirty mode are in place, because of an incorrect assertion related to M2P...