CVE-2021-28698

long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones...

CVE-2021-28698

long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones...

CVE-2021-28697

CVE-2021-28697 concerns Xen grant table v2 status pages: race conditions in freeing/deallocation of grant-table pages can allow a guest to retain access to a memory page after it has been freed, potentially enabling memory access after switches between v2 and v1. The issue is caused by racing gue...

CVE-2021-28697

grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest...

CVE-2021-28697

grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest...

CVE-2021-28698

CVE-2021-28698 is described in CTX325319 as a Xen-related issue affecting Citrix Hypervisor where a malicious privileged code in a guest VM could cause host denial of service or host compromise, under conditions such as PCI passthrough with identity-mapped memory regions and multiple vCPUs. Citri...

CVE-2021-28698

long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones...

SUSE-SU-2021:2862-1 Security update for spectre-meltdown-checker

This update for spectre-meltdown-checker fixes the following issues: spectre-meltdown-checker was updated to version 0.44 bsc1189477 - feat: add support for SRBDS related vulnerabilities - feat: add zstd kernel decompression 370 - enh: arm: add experimental support for binary arm images - enh: rs...

CVE-2021-28700

xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured...

CVE-2021-28697

grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest...

PT-2021-6805 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to improper authorization in the Xen hypervisor. Exploitation of this issue allows an attacker to access sensitive data, compromise its integrity, and cause a denial of...

PT-2021-6610 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to long running loops in grant table handling. Xen maintains information on grant mappings a domain may create to map grants offered by other domains. When carrying out...

CVE-2021-28696

IOMMU page mapping issues on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresse...

Security update for spectre-meltdown-checker (moderate)

openSUSE Security Update: Security update for spectre-meltdown-checker Announcement ID: openSUSE-SU-2021:2861-1 Rating: moderate References: 1189477 Cross-References: CVE-2017-5753 CVSS scores: CVE-2017-5753 NVD : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-5753 SUSE: 7.1...

CVE-2021-28698

long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones...

CVE-2021-28694

IOMMU page mapping issues on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresse...

PT-2021-6824 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to the dom0less feature of the Xen hypervisor, which allows administrators to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit for...

PT-2021-6609 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to inadequate access control in the Xen hypervisor. Exploitation of this issue allows an attacker to access confidential data, compromise its integrity, and cause a denial ...

Hotfix XS82E031 - For Citrix Hypervisor 8.2

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2. Information About this Hotfix Component| Details ---|--- Prerequisite| None Post-update tasks| Restart the XAPI Toolstack Content live patchable| No Baselines for Live Patch| N/A Revision History|...

Xen 竞争条件问题漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen has a security vulnerability that can be...