CVE-2024-42070 netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers

2024-07-2915:52:34

Linux

www.cve.org

netfilter

nf_tables

vulnerability

EPSS

Percentile

5.0%

JSON

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

netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers

register store validation for NFT_DATA_VALUE is conditional, however,
the datatype is always either NFT_DATA_VALUE or NFT_DATA_VERDICT. This
only requires a new helper function to infer the register type from the
set datatype so this conditional check can be removed. Otherwise,
pointer to chain object can be leaked through the registers.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/netfilter/nf_tables.h",
      "net/netfilter/nf_tables_api.c",
      "net/netfilter/nft_lookup.c"
    ],
    "versions": [
      {
        "version": "96518518cc41",
        "lessThan": "40188a25a984",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "23752737c6a6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "5d43d789b579",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "461302e07f49",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "efb27ad05949",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "952bf8df2225",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "41a6375d48de",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96518518cc41",
        "lessThan": "7931d32955e0",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/netfilter/nf_tables.h",
      "net/netfilter/nf_tables_api.c",
      "net/netfilter/nft_lookup.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.13",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.317",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.279",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.221",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.162",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.97",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.37",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.8",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]