Code injection

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...

Race condition

An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations, because of an incomplete fix for CVE-2019-18421. XSA-299 addressed several critical issues in restartable PV type...

CVE-2019-19580

An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations, because of an incomplete fix for CVE-2019-18421. XSA-299 addressed several critical issues in restartable PV type...

CVE-2019-19580

An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations, because of an incomplete fix for CVE-2019-18421. XSA-299 addressed several critical issues in restartable PV type...

CVE-2019-19580

Xen through 4.12.x contains a privilege-escalation vulnerability (CVE-2019-19580) affecting x86 PV guests due to race conditions in pagetable promotion/demotion after an incomplete fix for CVE-2019-18421 (XSA-299). The issue could allow a malicious PV guest administrator to escalate to host privi...

CVE-2019-19583

CVE-2019-19583 describes a denial-of-service vulnerability in Xen’s VMX VMEntry path. When a VM is in a specific state (DB interception with single stepping and STI/MovSS active), the VMEntry checks can fail fatally for the guest, potentially crashing an HVM/PVH guest and causing guest DoS. The i...

CVE-2019-19583

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...

Fedora 30 : xen (2019-cbb732f760)

add missing XSA-299 patches x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 ---- VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298,...

Fedora 31 : xen (2019-376ec5c107)

add missing XSA-299 patches ---- x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 ---- VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298,...

Xen Project VCPUOP_initialise DoS (XSA-296)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability due to poor handling of an invalid format string in 'hypercallcreatecontinuation'. This function can be reached via a long-running 'VCPUOPinitialise'...

Xen Project Descriptor Table Limit Checking Privilege Escalation Vulnerability (XSA-298)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a privilege escalation vulnerability due to improper bounds checking for descriptor table accesses. An authenticated attacker, in user mode on a 32-bit guest, could leverage this...

[SECURITY] [DLA 1949-1] xen security update

Package : xen Version : 4.4.4lts5-0+deb8u1 CVE ID : CVE-2018-19961 CVE-2018-19962 CVE-2018-19966 XSA ID : XSA-275 XSA-280 XSA-285 XSA-287 XSA-288 Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, informations leaks or privilege escalatio...

[SECURITY] [DLA 1884-1] linux security update

Package : linux Version : 3.16.72-1 CVE ID : CVE-2017-18509 CVE-2018-20836 CVE-2019-1125 CVE-2019-3900 CVE-2019-10207 CVE-2019-10638 CVE-2019-13631 CVE-2019-14283 CVE-2019-14284 Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of...

Debian DLA-1884-1 : 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-2017-18509 Denis Andzakovic reported a missing type check in the IPv4 multicast routing implementation. A user with the CAPNETADMIN capability in a...

[SECURITY] [DLA 1715-1] linux-4.9 security update

Package : linux-4.9 Version : 4.9.144-3.1deb8u1 CVE ID : CVE-2017-18249 CVE-2018-1128 CVE-2018-1129 CVE-2018-3639 CVE-2018-5391 CVE-2018-5848 CVE-2018-6554 CVE-2018-12896 CVE-2018-13053 CVE-2018-13096 CVE-2018-13097 CVE-2018-13100 CVE-2018-13406 CVE-2018-14610 CVE-2018-14611 CVE-2018-14612...

Xen Project fsgsbase CPU Feature Privilege Escalation Vulnerability (XSA-293)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a privilege escalation vulnerability. Only x86 systems with the fsgsbase CPU feature are affected. Note that Nessus has checked the changeset versions based on the xen.git change log...

Xen Project Process Context Identifiers Shadow Pagetables Denial of Service Vulnerability (XSA-294)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability. Only x86 systems are affected. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware...

Xen Project PCI Pass-through Device Denial of Service Vulnerability (XSA-291)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability. Only x86 systems are affected. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware...

Xen Project Process Context Identifiers TLB Flushing Multiple Vulnerabilities (XSA-292)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by multiple vulnerabilities including denial of service, information disclosure, and privilege escalation. Only x86 systems are affected. Note that Nessus has checked the changeset versions...

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...