CVE-2022-23086 mpr/mps/mpt driver ioctl heap out-of-bounds write

2024-02-1504:57:19

freebsd

www.cve.org

cve-2022-23086

privilege escalation

ioctls

buffer overflow

root access

operator group

7 High

AI Score

Confidence

Low

0.0005 Low

EPSS

Percentile

16.2%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unknown",
    "modules": [
      "mpr",
      "mps",
      "mpt"
    ],
    "product": "FreeBSD",
    "vendor": "FreeBSD",
    "versions": [
      {
        "lessThan": "p1",
        "status": "affected",
        "version": "13.1-RC1",
        "versionType": "release"
      },
      {
        "lessThan": "p11",
        "status": "affected",
        "version": "13.0-RELEASE",
        "versionType": "release"
      },
      {
        "lessThan": "p5",
        "status": "affected",
        "version": "12.3-RELEASE",
        "versionType": "release"
      }
    ]
  }
]