CVE-2023-3090 Out-of-bounds write in Linux kernel's ipvlan network driver

2023-06-2819:06:41

CWE-787

Google

www.cve.org

linux kernel

ipvlan network driver

out-of-bounds write

vulnerability

local privilege escalation

config_ipvlan

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.9

Confidence

High

EPSS

Percentile

5.1%

JSON

A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation.

The out-of-bounds write is caused by missing skb->cb initialization in the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled.

We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "kernel",
    "product": "Kernel",
    "repo": "https://git.kernel.org",
    "vendor": "Linux",
    "versions": [
      {
        "lessThan": "6.4",
        "status": "affected",
        "version": "3.19",
        "versionType": "custom"
      }
    ]
  }
]