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
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": [
            {
              "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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              "ssvcData": {
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                "options": [
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                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-27T16:59:50.791219Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-03-27T17:15:44.417",
        "references": [
          {
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            "tags": [
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
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          },
          {
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          },
          {
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            "tags": [
              "Patch"
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          },
          {
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            "tags": [
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            "url": "https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
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              {
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                "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"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:02:25Z",
      "cve": "CVE-2023-52974",
      "id": "CVE-2023-52974",
      "initial_release_date": "2025-03-28T03:38:40Z",
      "product_status:known_not_affected": "248",
      "product_status:recommended": "298",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52974",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52974.json",
      "version": "24"
    },
    "vulnrichment": {
      "containers": {
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          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
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                  "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",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-52974",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
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                      },
                      {
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                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-03-27T16:59:50.791219Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
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                  {
                    "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": {
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              "product": "Linux",
              "programFiles": [
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                  "status": "affected",
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              "product": "Linux",
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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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                  "status": "unaffected",
                  "version": "5.10.168",
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                  "status": "unaffected",
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                  "versionType": "original_commit_for_fix"
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              "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",
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              "url": "https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3"
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          ],
          "title": "scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress",
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        "assignerShortName": "Linux",
        "cveId": "CVE-2023-52974",
        "datePublished": "2025-03-27T16:43:13.792Z",
        "dateReserved": "2025-03-27T16:40:15.737Z",
        "dateUpdated": "2026-01-05T10:17:58.867Z",
        "state": "PUBLISHED"
      },
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    }
  }
}



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Taxonomy of the tags.





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.