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CanonicalCVE-2023-31248

HistoryJul 05, 2023 - 7:15 p.m.

CVE-2023-31248

2023-07-0519:15:09

CWE-416

canonical

web.nvd.nist.gov

257

cve-2023-31248

linux kernel

nftables

use-after-free

local privilege escalation

vulnerability

nft_chain_lookup_byid()

cap_net_admin

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

7.7

Confidence

High

EPSS

Percentile

15.9%

JSON

Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; nft_chain_lookup_byid() failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace

Affected configurations

Nvd

Node

linuxlinux_kernelRange5.9–5.10.188

linuxlinux_kernelRange5.11–5.15.121

linuxlinux_kernelRange5.16–6.1.39

linuxlinux_kernelRange6.2–6.4.4

Node

fedoraprojectfedoraMatch37

fedoraprojectfedoraMatch38

Node

debiandebian_linuxMatch11.0

Node

canonicalubuntu_linuxMatch14.04esm

canonicalubuntu_linuxMatch16.04esm

canonicalubuntu_linuxMatch18.04lts

canonicalubuntu_linuxMatch20.04lts

canonicalubuntu_linuxMatch22.04lts

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
fedoraprojectfedora37cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
fedoraprojectfedora38cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
debiandebian_linux11.0cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
canonicalubuntu_linux14.04cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonicalubuntu_linux16.04cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonicalubuntu_linux18.04cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonicalubuntu_linux20.04cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
canonicalubuntu_linux22.04cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*
fedoraproject	fedora	38	cpe:2.3:o:fedoraproject:fedora:38:::::::*
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*
canonical	ubuntu_linux	14.04	cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
canonical	ubuntu_linux	16.04	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::
canonical	ubuntu_linux	18.04	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
canonical	ubuntu_linux	20.04	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
canonical	ubuntu_linux	22.04	cpe:2.3:o:canonical:ubuntu_linux:22.04::::lts:::

CNA Affected

[
  {
    "platforms": [
      "Linux"
    ],
    "product": "Linux Kernel",
    "vendor": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "v5.9-rc1"
      }
    ]
  }
]