CVE-2022-2785 Arbitrary Memory read in BPF Linux Kernel

2022-08-0700:00:00

CWE-125

Google

www.cve.org

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

12.7%

JSON

There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c

CNA Affected

[
  {
    "product": "Kernel",
    "vendor": "Linux Kernel",
    "versions": [
      {
        "lessThan": "af2ac3e13e45",
        "status": "affected",
        "version": "5.14",
        "versionType": "custom"
      },
      {
        "lessThan": "b1d18a7574d0",
        "status": "affected",
        "version": "5.18",
        "versionType": "custom"
      }
    ]
  }
]