openSUSE Security Update : xen (openSUSE-2018-766)

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...

Security update for xen (important)

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 libxl...

Hardcoded credentials

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

CVE-2018-12892

An issue was discovered in Xen 4.7 through 4.10.x. libxl fails to pass the readonly flag to qemu when setting up a SCSI disk, due to what was probably an erroneous merge conflict resolution. Malicious guest administrators or in some situations users may be able to write to supposedly read-only di...

DEBIAN-CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

CVE-2018-12893

CVE-2018-12893 concerns Xen up to 4.10.x. A safety check added to prevent livelock during debug exceptions (XSA-260) can be triggered by a guest, enabling a malicious x86 PV guest to crash Xen and cause a Denial of Service. The vulnerability is limited to x86 platforms and affects PV guests only;...

CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:1456-1) (Spectre)

This update for xen fixes the following issues: Security issues fixed : - CVE-2018-3639: Spectre V4 Speculative Store Bypass aka 'Memory Disambiguation' bsc1092631 This feature can be controlled by the 'ssbd=on/off' commandline flag for the XEN hypervisor. - CVE-2018-10982: x86 vHPET interrupt...

OracleVM 3.4 : xen (OVMSA-2018-0221)

The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: OVMF commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8 - BUILDINFO: xen commit=5ee0a217664a1fde547afa506e92e4998ed26699 - BUILDINFO: QEMU upstream...

Fedora 26 : xen (2018-eb69078020)

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...

openSUSE Security Update : xen (openSUSE-2018-454) (Meltdown)

This update for xen to version 4.9.2 fixes several issues. This feature was added : - Added script, udev rule and systemd service to watch for vcpu online/offline events in a HVM domU. They are triggered via 'xl vcpu-set domU N' These security issues were fixed : - CVE-2018-8897: Prevent...

Security update for xen (important)

This update for xen to version 4.9.2 fixes several issues. This feature was added: - Added script, udev rule and systemd service to watch for vcpu online/offline events in a HVM domU. They are triggered via 'xl vcpu-set domU N' These security issues were fixed: - CVE-2018-8897: Prevent mishandlin...

Xen Intel Architecture Debug Exception Handling Local Privilege Escalation (XSA-260)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a local privilege escalation 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...

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 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...

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...