CVE-2024-35897 (GCVE-0-2024-35897)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-10-15 00:41
VLAI
Title
netfilter: nf_tables: discard table flag update with pending basechain deletion
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: discard table flag update with pending basechain deletion Hook unregistration is deferred to the commit phase, same occurs with hook updates triggered by the table dormant flag. When both commands are combined, this results in deleting a basechain while leaving its hook still registered in the core.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:41 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: bf8083bbf8fa202e6e5316bbd99759ab82bfe7a3 , < e75faf01e22ec7dc671640fa0e0968964fafd2fc (git)
Affected: e10f661adc556c4969c70ddaddf238bffdaf1e87 , < 9a3b90904d8a072287480eed4c3ece4b99d64f78 (git)
Affected: d9c4da8cb74e8ee6e58a064a3573aa37acf6c935 , < b58d0ac35f6d75ec1db8650a29dfd6f292c11362 (git)
Affected: 179d9ba5559a756f4322583388b3213fe4e391b0 , < 6cbbe1ba76ee7e674a86abd43009b083a45838cb (git)
Affected: 179d9ba5559a756f4322583388b3213fe4e391b0 , < 2aeb805a1bcd5f27c8c0d1a9d4d653f16d1506f4 (git)
Affected: 179d9ba5559a756f4322583388b3213fe4e391b0 , < 9627fd0c6ea1c446741a33e67bc5709c59923827 (git)
Affected: 179d9ba5559a756f4322583388b3213fe4e391b0 , < 7f609f630951b624348373cef99991ce08831927 (git)
Affected: 179d9ba5559a756f4322583388b3213fe4e391b0 , < 1bc83a019bbe268be3526406245ec28c2458a518 (git)
Affected: 5.4.262 , < 5.4.274 (semver)
Affected: 5.10.202 , < 5.10.215 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.13
Unaffected: 0 , < 5.13 (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.155 , ≤ 5.15.* (semver)
Unaffected: 6.1.86 , ≤ 6.1.* (semver)
Unaffected: 6.6.26 , ≤ 6.6.* (semver)
Unaffected: 6.8.5 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < V1.1.1 (custom)
guessed Create a notification for this product.
Show details on NVD website
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                },
                {
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                  "versionType": "git"
                },
                {
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                  "versionType": "git"
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                  "versionType": "git"
                },
                {
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                },
                {
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                  "status": "affected",
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                },
                {
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                  "status": "affected",
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                  "versionType": "git"
                },
                {
                  "lessThan": "5.4.274",
                  "status": "affected",
                  "version": "5.4.262",
                  "versionType": "semver"
                },
                {
                  "lessThan": "5.10.215",
                  "status": "affected",
                  "version": "5.10.202",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "net/netfilter/nf_tables_api.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.13"
                },
                {
                  "lessThan": "5.13",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.274",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.215",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.155",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.86",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.26",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.8.*",
                  "status": "unaffected",
                  "version": "6.8.5",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.9",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.274",
                      "versionStartIncluding": "5.4.262",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.215",
                      "versionStartIncluding": "5.10.202",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.155",
                      "versionStartIncluding": "5.13",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.86",
                      "versionStartIncluding": "5.13",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.26",
                      "versionStartIncluding": "5.13",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8.5",
                      "versionStartIncluding": "5.13",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.9",
                      "versionStartIncluding": "5.13",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: discard table flag update with pending basechain deletion\n\nHook unregistration is deferred to the commit phase, same occurs with\nhook updates triggered by the table dormant flag. When both commands are\ncombined, this results in deleting a basechain while leaving its hook\nstill registered in the core."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:L - The vulnerability is reached through an nfnetlink/nf_tables netlink batch transaction (NFT_MSG_DELCHAIN + NFT_MSG_NEWTABLE flag update), which requires local access to the system; per kernel guidance netfilter/nftables is Local.\nAC:L - The attacker deterministically constructs the offending single batch (delete basechain, then set the table dormant flag) and then triggers the stale hook at will with self-generated traffic in their own netns; no race or uncontrollable precondition is involved.\nPR:L - nfnetlink_rcv() requires only ns_capable(net-\u003euser_ns, CAP_NET_ADMIN), which an unprivileged user obtains via \"unshare -Urn\" on distributions that enable unprivileged user namespaces, so basic user privileges suffice.\nUI:N - The attacker performs the entire sequence \u2014 batch submission, heap spray, and packet generation through the stale hook \u2014 with no action from any other user.\nS:U - The freed basechain and the netfilter hook infrastructure are both kernel objects in the same security authority; this is standard kernel privilege escalation with no VM/IOMMU boundary crossed.\nC:H - The dangling nf_hook_entry makes nft_do_chain() dereference a freed, attacker-reallocatable nft_base_chain (chain-\u003eblob_gen_0 and the rule blob), yielding a use-after-free read primitive over arbitrary kernel memory.\nI:H - After spraying the freed kmalloc-cg basechain, the attacker controls the rule blob and thus expr-\u003eops-\u003eeval, giving an indirect call through an attacker-controlled function pointer \u2014 full control-flow hijack and kernel memory modification.\nA:H - Even without exploitation, the first packet through the stale hook dereferences freed memory, causing an oops/panic (or a \"hook not found\" WARN in the mirrored ordering), taking down the kernel."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T11:30:48.771Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/e75faf01e22ec7dc671640fa0e0968964fafd2fc"
            },
            {
              "url": "https://git.kernel.org/stable/c/9a3b90904d8a072287480eed4c3ece4b99d64f78"
            },
            {
              "url": "https://git.kernel.org/stable/c/b58d0ac35f6d75ec1db8650a29dfd6f292c11362"
            },
            {
              "url": "https://git.kernel.org/stable/c/6cbbe1ba76ee7e674a86abd43009b083a45838cb"
            },
            {
              "url": "https://git.kernel.org/stable/c/2aeb805a1bcd5f27c8c0d1a9d4d653f16d1506f4"
            },
            {
              "url": "https://git.kernel.org/stable/c/9627fd0c6ea1c446741a33e67bc5709c59923827"
            },
            {
              "url": "https://git.kernel.org/stable/c/7f609f630951b624348373cef99991ce08831927"
            },
            {
              "url": "https://git.kernel.org/stable/c/1bc83a019bbe268be3526406245ec28c2458a518"
            }
          ],
          "title": "netfilter: nf_tables: discard table flag update with pending basechain deletion",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-35897",
        "datePublished": "2024-05-19T08:34:51.799Z",
        "dateReserved": "2024-05-17T13:50:33.114Z",
        "dateUpdated": "2026-10-15T00:41:15.106Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

Author Source Type Date Other

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    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.