Fedora 28 : xen (2018-683dfde81a) (Foreshadow)

L1 Terminal Fault speculative side channel patch bundle XSA-273, CVE-2018-3620, CVE-2018-3646 drop patches also in the bundle, which also includes Use of v2 grant tables may cause crash on ARM XSA-268 1616081 x86: Incorrect MSRDEBUGCTL handling lets guests enable BTS XSA-269 1616077 oxenstored do...

Fedora 28 : xen (2018-a7862a75f5)

preemption checks bypassed in x86 PV MM handling XSA-264, CVE-2018-12891 1595959 x86: DB exception safety check can be triggered by a guest XSA-265, CVE-2018-12893 1595958 libxl fails to honour readonly flag on HVM emulated SCSI disks XSA-266, CVE-2018-12892 1595957 Note that Tenable Network...

Fedora 29 : xen (2018-8e457298ce)

guest use of HLE constructs may lock up host XSA-282 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 format it as much as possible without introducing additional issue...

SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2018:1981-1)

This update for xen fixes the following issues: Security issues fixed : - CVE-2018-3665: Fix Lazy FP Save/Restore issue XSA-267 bsc1095242. - CVE-2018-12891: Fix possible Denial of Service DoS via certain PV MMU operations that affect the entire host XSA-264 bsc1097521. - CVE-2018-12892: Fix libx...

openSUSE: Security Advisory for xen (openSUSE-SU-2018:4304-1)

The remote host is missing an update for the Copyright C 2019 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

openSUSE Security Update : xen (openSUSE-2018-1624) (Foreshadow)

This update for xen fixes the following issues : Update to Xen 4.10.2 bug fix release bsc1027519. Security vulnerabilities fixed : - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, m...

Xen Project XSA-240 Mitigation Shadow Paging Conflict Vulnerability (XSA-280)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a vulnerability allowing a guest system to potentially elevate privileges, access protected information, and perform a DoS against the host. A number of caveats exist to determine if a...

Xen Project HLE Transaction 'XACQUIRE' DoS (XSA-282)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a guest-to-host denial of service vulnerability. Only Intel based x86 systems are affected. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did...

Fedora 27 : xen (2018-fe24359b69)

guest use of HLE constructs may lock up host XSA-282 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 format it as much as possible without introducing additional issue...

Fix for XSA-240 conflicts with shadow paging

ISSUE DESCRIPTION The fix for XSA-240 introduced a new field into the control structure associated with each page of RAM. This field was added to a union, another member of which is used when Xen uses shadow paging for the guest. During migration, or with the L1TF XSA-273 mitigation for PV guests...

SUSE SLES12 Security Update : xen (SUSE-SU-2018:3332-1)

This update for xen fixes the following issues : CVE-2018-17963: qemudeliverpacketiov accepted packet sizes greater than INTMAX, which allows attackers to cause a denial of service or possibly have unspecified other impact. bsc1111014 CVE-2018-15468: The DEBUGCTL MSR contains several debugging...

SUSE SLES12 Security Update : xen (SUSE-SU-2018:2081-2)

This update for xen fixes the following issues : Security issues fixed : CVE-2018-12891: Fix preemption checks bypass in x86 PV MM handling XSA-264 bsc1097521. CVE-2018-12892: Fix libxl failure to honour readonly flag on HVM emulated SCSI disks XSA-266 bsc1097523. CVE-2018-12893: Fix DB exception...

SUSE SLES12 Security Update : xen (SUSE-SU-2018:3230-1) (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...

Debian DSA-4313-1 : linux - security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2018-15471 XSA-270 Felix Wilhelm of Google Project Zero discovered a flaw in the hash handling of the xen-netback Linux kernel module. A maliciou...

Fedora 27 : xen (2018-915602df63) (Foreshadow)

L1 Terminal Fault speculative side channel patch bundle XSA-273, CVE-2018-3620, CVE-2018-3646 drop patches also in the bundle, which also includes Use of v2 grant tables may cause crash on ARM XSA-268 1616081 x86: Incorrect MSRDEBUGCTL handling lets guests enable BTS XSA-269 1616077 oxenstored do...

Xen Project Speculative Execution Side Channel Vulnerability (XSA-273) (Foreshadow)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a speculative execution side channel attack known as L1 Terminal Fault L1TF. An attacker who successfully exploited L1TF may be able to read privileged data across trust boundaries. Note...

Xen Project MSR_DEBUGCTL 'Branch Trace Store' DoS (XSA-269)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches we...

Xen Project Oxenstored Quota-maxentity DoS (XSA-272)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches we...

Debian DSA-4274-1 : xen - security update (Foreshadow)

This update provides mitigations for the 'L1 Terminal Fault'vulnerability affecting a range of Intel CPUs. For additional information please refer to https://xenbits.xen.org/xsa/advisory-273.html. The microcode updates mentioned there are not yet available in a form distributable by Debian. In...

openSUSE Security Update : xen (openSUSE-2018-803)

This update for xen fixes the following issues : Security issues fixed : - CVE-2018-3665: Fix Lazy FP Save/Restore issue XSA-267 bsc1095242. - CVE-2018-12891: Fix possible Denial of Service DoS via certain PV MMU operations that affect the entire host XSA-264 bsc1097521. - CVE-2018-12892: Fix lib...