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CVE-2024-36903 (GCVE-0-2024-36903)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2026-09-08 08:39
VLAI
Title
ipv6: Fix potential uninit-value access in __ip6_make_skb()
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix potential uninit-value access in __ip6_make_skb() As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-30 18:50 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 605b056d63302ae84eb136e88d4df49124bd5e0d , < 59d74c843ebf46264c7903726cf6f2673a93b07a (git)
Affected: d65ff2fe877c471aa6e79efa7bd8ff66e147c317 , < 40e5444a3ac315b60e94d82226b73cd82145d09e (git)
Affected: 2c9cefc142c1dc2759e19a92d3b2b3715e985beb , < a05c1ede50e9656f0752e523c7b54f3a3489e9a8 (git)
Affected: ea30388baebcce37fd594d425a65037ca35e59e8 , < 68c8ba16ab712eb709c6bab80ff151079d11d97a (git)
Affected: ea30388baebcce37fd594d425a65037ca35e59e8 , < 2367bf254f3a27ecc6e229afd7a8b0a1395f7be3 (git)
Affected: ea30388baebcce37fd594d425a65037ca35e59e8 , < 4e13d3a9c25b7080f8a619f961e943fe08c2672c (git)
Affected: 165370522cc48127da564a08584a7391e6341908 (git)
Affected: f394f690a30a5ec0413c62777a058eaf3d6e10d5 (git)
Affected: 0cf600ca1bdf1d52df977516ee6cee0cadb1f6b1 (git)
Affected: 02ed5700f40445af02d1c97db25ffc2d04971d9f (git)
Affected: 5.10.178 , < 5.10.248 (semver)
Affected: 5.15.107 , < 5.15.198 (semver)
Affected: 6.1.24 , < 6.1.140 (semver)
Affected: 4.14.313 , < 4.15 (semver)
Affected: 4.19.281 , < 4.20 (semver)
Affected: 5.4.241 , < 5.5 (semver)
Affected: 6.2.11 , < 6.3 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.140 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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                  "lessThan": "5.15.198",
                  "status": "affected",
                  "version": "5.15.107",
                  "versionType": "semver"
                },
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                  "lessThan": "6.1.140",
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                  "version": "6.1.24",
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                {
                  "lessThan": "4.15",
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                  "versionType": "semver"
                },
                {
                  "lessThan": "4.20",
                  "status": "affected",
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                  "versionType": "semver"
                },
                {
                  "lessThan": "5.5",
                  "status": "affected",
                  "version": "5.4.241",
                  "versionType": "semver"
                },
                {
                  "lessThan": "6.3",
                  "status": "affected",
                  "version": "6.2.11",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "net/ipv6/ip6_output.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.3"
                },
                {
                  "lessThan": "6.3",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.248",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.198",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.140",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.31",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.8.*",
                  "status": "unaffected",
                  "version": "6.8.10",
                  "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": "5.10.248",
                      "versionStartIncluding": "5.10.178",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.198",
                      "versionStartIncluding": "5.15.107",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.140",
                      "versionStartIncluding": "6.1.24",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "vulnerable": true
                    },
                    {
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                      "versionStartIncluding": "6.3",
                      "vulnerable": true
                    },
                    {
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                      "versionEndExcluding": "6.9",
                      "versionStartIncluding": "6.3",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "4.14.313",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "4.19.281",
                      "vulnerable": true
                    },
                    {
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                      "versionStartIncluding": "5.4.241",
                      "vulnerable": true
                    },
                    {
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                      "vulnerable": true
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                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix potential uninit-value access in __ip6_make_skb()\n\nAs it was done in commit fc1092f51567 (\"ipv4: Fix uninit-value access in\n__ip_make_skb()\") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6-\u003eflowi6_flags\ninstead of testing HDRINCL on the socket to avoid a race condition which\ncauses uninit-value access."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T15:47:20.326Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/59d74c843ebf46264c7903726cf6f2673a93b07a"
            },
            {
              "url": "https://git.kernel.org/stable/c/40e5444a3ac315b60e94d82226b73cd82145d09e"
            },
            {
              "url": "https://git.kernel.org/stable/c/a05c1ede50e9656f0752e523c7b54f3a3489e9a8"
            },
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              "url": "https://git.kernel.org/stable/c/68c8ba16ab712eb709c6bab80ff151079d11d97a"
            },
            {
              "url": "https://git.kernel.org/stable/c/2367bf254f3a27ecc6e229afd7a8b0a1395f7be3"
            },
            {
              "url": "https://git.kernel.org/stable/c/4e13d3a9c25b7080f8a619f961e943fe08c2672c"
            }
          ],
          "title": "ipv6: Fix potential uninit-value access in __ip6_make_skb()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-36903",
        "datePublished": "2024-05-30T15:29:04.866Z",
        "dateReserved": "2024-05-30T15:25:07.066Z",
        "dateUpdated": "2026-09-08T08:39:01.090Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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.


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.