CVE-2024-26668 netfilter: nft_limit: reject configurations that cause integer overflow

2024-04-0206:43:29

Linux

www.cve.org

linux kernel

netfilter

nft_limit

integer overflow

configurations

reject

bogus configs

token counter

large requests

ratelimit

AI Score

7.6

Confidence

High

EPSS

Percentile

15.5%

JSON

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

netfilter: nft_limit: reject configurations that cause integer overflow

Reject bogus configs where internal token counter wraps around.
This only occurs with very very large requests, such as 17gbyte/s.

Its better to reject this rather than having incorrect ratelimit.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nft_limit.c"
    ],
    "versions": [
      {
        "version": "d2168e849ebf",
        "lessThan": "79d4efd75e7d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d2168e849ebf",
        "lessThan": "bc6e242bb74e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d2168e849ebf",
        "lessThan": "9882495d02ec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d2168e849ebf",
        "lessThan": "00c2c29aa36d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d2168e849ebf",
        "lessThan": "c9d9eb9c53d3",
        "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/netfilter/nft_limit.c"
    ],
    "versions": [
      {
        "version": "4.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.149",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.76",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.15",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.3",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]