CVE-2024-42269

2024-08-1709:15:08

CWE-476

Linux

web.nvd.nist.gov

linux kernel

netfilter iptables

potential null-ptr-deref

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

Low

EPSS

Percentile

5.0%

JSON

In the Linux kernel, the following vulnerability has been resolved:

netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().

ip6table_nat_table_init() accesses net->gen->ptr[ip6table_nat_net_ops.id],
but the function is exposed to user space before the entry is allocated
via register_pernet_subsys().

Let’s call register_pernet_subsys() before xt_register_template().

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange5.15–6.1.104

linuxlinux_kernelRange6.2–6.6.45

linuxlinux_kernelRange6.7–6.10.4

linuxlinux_kernelMatch6.11rc1

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc1::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/netfilter/ip6table_nat.c"
    ],
    "versions": [
      {
        "version": "fdacd57c79b7",
        "lessThan": "419ee6274c51",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fdacd57c79b7",
        "lessThan": "91b6df6611b7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fdacd57c79b7",
        "lessThan": "e85b9b6a87be",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fdacd57c79b7",
        "lessThan": "87dba44e9471",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fdacd57c79b7",
        "lessThan": "c22921df777d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/netfilter/ip6table_nat.c"
    ],
    "versions": [
      {
        "version": "5.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.15",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.165",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.104",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.45",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.4",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]