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Out-of-bounds Read

CVE-2025-58147

High
7.5/10

Summary

In Xen package versions 4.15.0-rc1 through 4.21.0-rc1, some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause out-of-bounds reads and writes while processing the inputs. Hypercalls using the "HV_VP_SET" Sparse format can cause "vpmask_set()" to write Out-of-bounds when converting the bitmap to Xen's format.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-125 - Out-of-Bounds Read

Out-of-bounds read is a vulnerability that allows access to memory beyond the authorized accessible location. Such a vulnerability compromises the confidentiality of the trusted environment in the application and enables an attacker to launch further attacks by leveraging the exposed information.

References

Advisory Timeline

  • Published