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CVE-2024-40993 (GCVE-0-2024-40993)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:37 – Updated: 2026-05-12 11:56
VLAI
Title
netfilter: ipset: Fix suspicious rcu_dereference_protected()
Summary
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().
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:01 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3 , < 3799d02ae4208af08e81310770d8754863a246a1 (git)
Affected: 93b53c202b51a69e42ca57f5a183f7e008e19f83 , < 72d9611968867cc4c5509e7708b1507d692b797a (git)
Affected: 0f1bb77c6d837c9513943bc7c08f04c5cc5c6568 , < 523bed6489e089dd8040e72453fb79da47b144c2 (git)
Affected: 390b353d1a1da3e9c6c0fd14fe650d69063c95d6 , < 788d585e62f487bc4536d454937f737b70d39a33 (git)
Affected: 2ba35b37f780c6410bb4bba9c3072596d8576702 , < 94dd411c18d7fff9e411555d5c662d29416501e4 (git)
Affected: 90ae20d47de602198eb69e6cd7a3db3420abfc08 , < 3fc09e1ca854bc234e007a56e0f7431f5e2defb5 (git)
Affected: 4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10 , < 8ecd06277a7664f4ef018abae3abd3451d64e7a6 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.1.95 , < 6.1.96 (semver)
Affected: 6.6.35 , < 6.6.36 (semver)
Affected: 6.9.6 , < 6.9.7 (semver)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T17:01:41.687653Z\",\"id\":\"CVE-2024-40993\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1.95:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C8C0F47F-CC5A-4962-A13F-F2632DEBE9D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.6.35:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"24BA51FC-6014-49BB-A4E3-0C0211421E38\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BA2678D2-361E-4A41-AD4D-DBFA70AD14D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"79F18AFA-40F7-43F0-BA30-7BDB65F918B9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-02-02T11:00:35+00:00",
      "cve": "CVE-2024-40993",
      "id": "CVE-2024-40993",
      "initial_release_date": "2024-07-12T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: ipset: Fix suspicious rcu_dereference_protected()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-40993.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:52:15Z",
      "cve": "CVE-2024-40993",
      "id": "CVE-2024-40993",
      "initial_release_date": "2024-07-16T02:33:59Z",
      "product_status:known_not_affected": "373",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-40993",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-40993.json",
      "version": "17"
    },
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-07-15T06:52:58.373Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: ipset: Fix suspicious rcu_dereference_protected()\\n\\nWhen destroying all sets, we are either in pernet exit phase or\\nare executing a \\\"destroy all sets command\\\" from userspace. The latter\\nwas taken into account in ip_set_dereference() (nfnetlink mutex is held),\\nbut the former was not. The patch adds the required check to\\nrcu_dereference_protected() in ip_set_dereference().\"}], \"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\"}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1\"}, {\"url\": \"https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797a\"}, {\"url\": \"https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2\"}, {\"url\": \"https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33\"}, {\"url\": \"https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4\"}, {\"url\": \"https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5\"}, {\"url\": \"https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6\"}], \"title\": \"netfilter: ipset: Fix suspicious rcu_dereference_protected()\", \"x_generator\": {\"engine\": \"bippy-c9c4e1df01b2\"}}, \"adp\": [{\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-40993\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T17:01:41.687653Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2024-09-11T12:42:22.052Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-40993\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2024-07-12T12:17:45.606Z\", \"datePublished\": \"2024-07-12T12:37:36.453Z\", \"dateUpdated\": \"2024-08-02T04:39:56.065Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.