CVE-2024-40993

2024-07-1213:15:20

Linux

web.nvd.nist.gov

linux kernel

netfilter

ipset

vulnerability

rcu dereference protection

AI Score

6.5

Confidence

Low

EPSS

Percentile

10.6%

JSON

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

netfilter: ipset: Fix suspicious rcu_dereference_protected()

When destroying all sets, we are either in pernet exit phase or
are executing a “destroy all sets command” from userspace. The latter
was taken into account in ip_set_dereference() (nfnetlink mutex is held),
but the former was not. The patch adds the required check to
rcu_dereference_protected() in ip_set_dereference().

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.1.95–6.1.96

linuxlinux_kernelRange6.6.35–6.6.36

linuxlinux_kernelRange6.9.6–6.9.7

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:a:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/ipset/ip_set_core.c"
    ],
    "versions": [
      {
        "version": "c0761d1f1ce1",
        "lessThan": "3799d02ae420",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "93b53c202b51",
        "lessThan": "72d961196886",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0f1bb77c6d83",
        "lessThan": "523bed6489e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "390b353d1a1d",
        "lessThan": "788d585e62f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2ba35b37f780",
        "lessThan": "94dd411c18d7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "90ae20d47de6",
        "lessThan": "3fc09e1ca854",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7aaa6b82d6",
        "lessThan": "8ecd06277a76",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/ipset/ip_set_core.c"
    ],
    "versions": [
      {
        "version": "6.1.95",
        "lessThan": "6.1.96",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "6.6.35",
        "lessThan": "6.6.36",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "6.9.6",
        "lessThan": "6.9.7",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]