CVE-2022-23086

Summary

Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small.

Users with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.

Affected Software

VendorProductVersion RangeStatus
FreeBSDFreeBSD13.1-RC1 < p1affected
FreeBSDFreeBSD13.0-RELEASE < p11affected
FreeBSDFreeBSD12.3-RELEASE < p5affected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References