CVE-2023-52974 (GCVE-0-2023-52974)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2026-08-05 09:12
VLAI
Title
scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress If during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails, userspace could be accessing the host's ipaddress attr. If we then free the session via iscsi_session_teardown() while userspace is still accessing the session we will hit a use after free bug. Set the tcp_sw_host->session after we have completed session creation and can no longer fail.
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: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-27 16:59 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < 496af9d3682ed4c28fb734342a09e6cc0c056ea4 (git)
Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < 6abd4698f4c8a78e7bbfc421205c060c199554a0 (git)
Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < d4d765f4761f9e3a2d62992f825aeee593bcb6b9 (git)
Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < 9758ffe1c07b86aefd7ca8e40d9a461293427ca0 (git)
Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < 0aaabdb900c7415caa2006ef580322f7eac5f6b6 (git)
Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < 61e43ebfd243bcbad11be26bd921723027b77441 (git)
Affected: a79af8a64d395bd89de8695a5ea5e1a7f01f02a8 , < f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.39
Unaffected: 0 , < 2.6.39 (semver)
Unaffected: 4.14.306 , ≤ 4.14.* (semver)
Unaffected: 4.19.273 , ≤ 4.19.* (semver)
Unaffected: 5.4.232 , ≤ 5.4.* (semver)
Unaffected: 5.10.168 , ≤ 5.10.* (semver)
Unaffected: 5.15.93 , ≤ 5.15.* (semver)
Unaffected: 6.1.11 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: iscsi_tcp: Se corrige el UAF durante el inicio de sesi\u00f3n al acceder a la direcci\u00f3n IP del host. Si durante iscsi_sw_tcp_session_create() falla iscsi_tcp_r2tpool_alloc(), el espacio de usuario podr\u00eda estar accediendo a la direcci\u00f3n IP del host. Si liberamos la sesi\u00f3n mediante iscsi_session_teardown() mientras el espacio de usuario a\u00fan accede a ella, se producir\u00e1 un error de use after free. Configure tcp_sw_host-\u0026gt;session despu\u00e9s de completar la creaci\u00f3n de la sesi\u00f3n y ya no podr\u00e1 fallar."
          }
        ],
        "id": "CVE-2023-52974",
        "lastModified": "2026-06-17T06:44:01.917",
        "metrics": {
          "cvssMetricV31": [
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              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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              "impactScore": 5.9,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
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          ],
          "ssvcV203": [
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                "options": [
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                  },
                  {
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-27T16:59:50.791219Z",
                "version": "2.0.3"
              }
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          ]
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        "published": "2025-03-27T17:15:44.417",
        "references": [
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            "tags": [
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          {
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            "tags": [
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            "url": "https://git.kernel.org/stable/c/61e43ebfd243bcbad11be26bd921723027b77441"
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          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
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          },
          {
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            "tags": [
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            "url": "https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3"
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
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              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T23:13:38+00:00",
      "cve": "CVE-2023-52974",
      "id": "CVE-2023-52974",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "316",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52974.json",
      "version": "3"
    },
    "vulnrichment": {
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              {
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                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-52974",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-03-27T16:59:50.791219Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-416",
                    "description": "CWE-416 Use After Free",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-03-27T16:59:52.054Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/scsi/iscsi_tcp.c"
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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                  "status": "affected",
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                {
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                  "status": "affected",
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                {
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            },
            {
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              "product": "Linux",
              "programFiles": [
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              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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                  "version": "2.6.39"
                },
                {
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                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
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                  "status": "unaffected",
                  "version": "4.14.306",
                  "versionType": "semver"
                },
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                  "status": "unaffected",
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                },
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                  "status": "unaffected",
                  "version": "5.4.232",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.168",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.93",
                  "versionType": "semver"
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                {
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                  "status": "unaffected",
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                  "versionType": "semver"
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                  "status": "unaffected",
                  "version": "6.2",
                  "versionType": "original_commit_for_fix"
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          "descriptions": [
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              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress\n\nIf during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails,\nuserspace could be accessing the host\u0027s ipaddress attr. If we then free the\nsession via iscsi_session_teardown() while userspace is still accessing the\nsession we will hit a use after free bug.\n\nSet the tcp_sw_host-\u003esession after we have completed session creation and\ncan no longer fail."
            }
          ],
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            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
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        "assignerShortName": "Linux",
        "cveId": "CVE-2023-52974",
        "datePublished": "2025-03-27T16:43:13.792Z",
        "dateReserved": "2025-03-27T16:40:15.737Z",
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        "state": "PUBLISHED"
      },
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    }
  }
}



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