Latest CVE Feed
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7.8
HIGHCVE-2021-28705
issues with partially successful P2M updates on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to... Read more
- EPSS Score: %0.12
- Published: Nov. 24, 2021
- Modified: Nov. 21, 2024
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8.8
HIGHCVE-2021-28704
PoD operations on misaligned GFNs T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for... Read more
- EPSS Score: %0.09
- Published: Nov. 24, 2021
- Modified: Nov. 21, 2024
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7.0
HIGHCVE-2021-28703
grant table v2 status pages may remain accessible after de-allocation (take two) 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... Read more
Affected Products : xen- EPSS Score: %0.11
- Published: Dec. 07, 2021
- Modified: Nov. 21, 2024
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7.6
HIGHCVE-2021-28702
PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR"). These are typically used for platform tasks such as legacy USB emulation. I... Read more
- EPSS Score: %0.09
- Published: Oct. 06, 2021
- Modified: Nov. 21, 2024
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7.8
HIGHCVE-2021-28701
Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-... Read more
- EPSS Score: %0.06
- Published: Sep. 08, 2021
- Modified: Nov. 21, 2024
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6.8
MEDIUMCVE-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... Read more
- EPSS Score: %2.13
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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5.5
MEDIUMCVE-2021-28699
inadequate grant-v2 status frames array bounds check The v2 grant table interface separates grant attributes from grant status. That is, when operating in this mode, a guest has two tables. As a result, guests also need to be able to retrieve the addresse... Read more
- EPSS Score: %0.07
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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5.5
MEDIUMCVE-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 ite... Read more
- EPSS Score: %0.06
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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7.8
HIGHCVE-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 pag... Read more
- EPSS Score: %0.06
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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6.8
MEDIUMCVE-2021-28696
IOMMU page mapping issues on x86 T[his 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 untran... Read more
- EPSS Score: %0.12
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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6.8
MEDIUMCVE-2021-28695
IOMMU page mapping issues on x86 T[his 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 untran... Read more
- EPSS Score: %0.14
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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6.8
MEDIUMCVE-2021-28694
IOMMU page mapping issues on x86 T[his 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 untran... Read more
- EPSS Score: %0.14
- Published: Aug. 27, 2021
- Modified: Nov. 21, 2024
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5.5
MEDIUMCVE-2021-28693
xen/arm: Boot modules are not scrubbed The bootloader will load boot modules (e.g. kernel, initramfs...) in a temporary area before they are copied by Xen to each domain memory. To ensure sensitive data is not leaked from the modules, Xen must "scrub" the... Read more
Affected Products : xen- EPSS Score: %0.06
- Published: Jun. 30, 2021
- Modified: Nov. 21, 2024
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7.1
HIGHCVE-2021-28692
inappropriate x86 IOMMU timeout detection / handling IOMMUs process commands issued to them in parallel with the operation of the CPU(s) issuing such commands. In the current implementation in Xen, asynchronous notification of the completion of such comma... Read more
Affected Products : xen- EPSS Score: %0.04
- Published: Jun. 30, 2021
- Modified: Nov. 21, 2024
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7.8
HIGHCVE-2021-28691
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed p... Read more
Affected Products : linux_kernel h410c_firmware cloud_backup h300s_firmware h500s_firmware h700s_firmware h410s_firmware h300s h410s h500s +8 more products- EPSS Score: %0.04
- Published: Jun. 29, 2021
- Modified: Nov. 21, 2024
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6.5
MEDIUMCVE-2021-28690
x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and pre... Read more
Affected Products : xen- EPSS Score: %0.36
- Published: Jun. 29, 2021
- Modified: Nov. 21, 2024
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5.5
MEDIUMCVE-2021-28689
x86: Speculative vulnerabilities with bare (non-shim) 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement para... Read more
Affected Products : xen- EPSS Score: %0.08
- Published: Jun. 11, 2021
- Modified: Nov. 21, 2024
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6.5
MEDIUMCVE-2021-28688
The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning u... Read more
- EPSS Score: %0.07
- Published: Apr. 06, 2021
- Modified: Nov. 21, 2024
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5.5
MEDIUMCVE-2021-28687
HVM soft-reset crashes toolstack libxl requires all data structures passed across its public interface to be initialized before use and disposed of afterwards by calling a specific set of functions. Many internal data structures also require this initiali... Read more
Affected Products : xen- EPSS Score: %0.04
- Published: Jun. 11, 2021
- Modified: Nov. 21, 2024
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5.5
MEDIUMCVE-2021-28686
AsIO2_64.sys and AsIO2_32.sys in ASUS GPUTweak II before 2.3.0.3 allow low-privileged users to trigger a stack-based buffer overflow. This could enable low-privileged users to achieve Denial of Service via a DeviceIoControl.... Read more
Affected Products : gputweak_ii- EPSS Score: %0.06
- Published: Apr. 08, 2021
- Modified: Nov. 21, 2024