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

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2026-05-11 19:36
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 (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
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)
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)
Create a notification for this product.
Show details on NVD website
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    "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": "2026-05-13T05:45:51Z",
      "cve": "CVE-2023-52974",
      "id": "CVE-2023-52974",
      "initial_release_date": "2025-03-28T03:38:40Z",
      "product_status:known_not_affected": "151",
      "product_status:recommended": "291",
      "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": "21"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52974\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-03-27T16:59:50.791219Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-03-27T16:59:52.054Z\"}}], \"cna\": {\"title\": \"scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"496af9d3682ed4c28fb734342a09e6cc0c056ea4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"6abd4698f4c8a78e7bbfc421205c060c199554a0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"d4d765f4761f9e3a2d62992f825aeee593bcb6b9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"9758ffe1c07b86aefd7ca8e40d9a461293427ca0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"0aaabdb900c7415caa2006ef580322f7eac5f6b6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"61e43ebfd243bcbad11be26bd921723027b77441\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a79af8a64d395bd89de8695a5ea5e1a7f01f02a8\", \"lessThan\": \"f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/scsi/iscsi_tcp.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.39\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.39\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.306\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.273\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.232\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.93\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/scsi/iscsi_tcp.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/496af9d3682ed4c28fb734342a09e6cc0c056ea4\"}, {\"url\": \"https://git.kernel.org/stable/c/6abd4698f4c8a78e7bbfc421205c060c199554a0\"}, {\"url\": \"https://git.kernel.org/stable/c/d4d765f4761f9e3a2d62992f825aeee593bcb6b9\"}, {\"url\": \"https://git.kernel.org/stable/c/9758ffe1c07b86aefd7ca8e40d9a461293427ca0\"}, {\"url\": \"https://git.kernel.org/stable/c/0aaabdb900c7415caa2006ef580322f7eac5f6b6\"}, {\"url\": \"https://git.kernel.org/stable/c/61e43ebfd243bcbad11be26bd921723027b77441\"}, {\"url\": \"https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.306\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.273\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.232\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.168\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.93\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.11\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"2.6.39\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:17:58.867Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52974\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:17:58.867Z\", \"dateReserved\": \"2025-03-27T16:40:15.737Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-03-27T16:43:13.792Z\", \"assignerShortName\": \"Linux\"}",
      "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.