CVE-2023-53839 (GCVE-0-2023-53839)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2025-12-09 01:29
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 67eebc7a9217f999b779d46fba5312a716f0dc1d (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 6d701c95ee6463abcbb6da543060d6e444554135 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < f239c9e1d98b313435481b4926e8bdd06197e4d8 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < a6ddc1c774874dc704f96a99d015dc759627bba7 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < a47e598fbd8617967e49d85c49c22f9fc642704c (git)
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    Linux Linux Affected: 2.6.14
Unaffected: 0 , < 2.6.14 (semver)
Unaffected: 4.14.323 , ≤ 4.14.* (semver)
Unaffected: 4.19.292 , ≤ 4.19.* (semver)
Unaffected: 5.4.254 , ≤ 5.4.* (semver)
Unaffected: 5.10.191 , ≤ 5.10.* (semver)
Unaffected: 5.15.127 , ≤ 5.15.* (semver)
Unaffected: 6.1.46 , ≤ 6.1.* (semver)
Unaffected: 6.4.11 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/dccp/output.c",
            "net/dccp/proto.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
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              "versionType": "git"
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              "versionType": "git"
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              "versionType": "git"
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/dccp/output.c",
            "net/dccp/proto.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.14"
            },
            {
              "lessThan": "2.6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.292",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.254",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.127",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.323",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.292",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.254",
                  "versionStartIncluding": "2.6.14",
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                },
                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.46",
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                },
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndccp: fix data-race around dp-\u003edccps_mss_cache\n\ndccp_sendmsg() reads dp-\u003edccps_mss_cache before locking the socket.\nSame thing in do_dccp_getsockopt().\n\nAdd READ_ONCE()/WRITE_ONCE() annotations,\nand change dccp_sendmsg() to check again dccps_mss_cache\nafter socket is locked."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T01:29:55.540Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817"
        },
        {
          "url": "https://git.kernel.org/stable/c/67eebc7a9217f999b779d46fba5312a716f0dc1d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135"
        },
        {
          "url": "https://git.kernel.org/stable/c/f239c9e1d98b313435481b4926e8bdd06197e4d8"
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          "url": "https://git.kernel.org/stable/c/a6ddc1c774874dc704f96a99d015dc759627bba7"
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        },
        {
          "url": "https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c"
        }
      ],
      "title": "dccp: fix data-race around dp-\u003edccps_mss_cache",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53839",
    "datePublished": "2025-12-09T01:29:55.540Z",
    "dateReserved": "2025-12-09T01:27:17.826Z",
    "dateUpdated": "2025-12-09T01:29:55.540Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53839\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T16:17:23.527\",\"lastModified\":\"2025-12-09T18:37:13.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndccp: fix data-race around dp-\u003edccps_mss_cache\\n\\ndccp_sendmsg() reads dp-\u003edccps_mss_cache before locking the socket.\\nSame thing in do_dccp_getsockopt().\\n\\nAdd READ_ONCE()/WRITE_ONCE() annotations,\\nand change dccp_sendmsg() to check again dccps_mss_cache\\nafter socket is locked.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67eebc7a9217f999b779d46fba5312a716f0dc1d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a6ddc1c774874dc704f96a99d015dc759627bba7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f239c9e1d98b313435481b4926e8bdd06197e4d8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • 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.