CVE-2023-53676 (GCVE-0-2023-53676)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:21 – Updated: 2025-10-07 15:21
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory. This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < df349e84c2cb0dd05d98c8e1189c26ab4b116083 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 114b44dddea1f8f99576de3c0e6e9059012002fc (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5353df78c22623b42a71d51226d228a8413097e2 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4738bf8b2d3635c2944b81b2a84d97b8c8b0978d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0cac6cbb9908309352a5d30c1876882771d3da50 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 801f287c93ff95582b0a2d2163f12870a2f076d4 (git)
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    Linux Linux Unaffected: 4.14.326 , ≤ 4.14.* (semver)
Unaffected: 4.19.295 , ≤ 4.19.* (semver)
Unaffected: 5.4.257 , ≤ 5.4.* (semver)
Unaffected: 5.10.197 , ≤ 5.10.* (semver)
Unaffected: 5.15.133 , ≤ 5.15.* (semver)
Unaffected: 6.1.55 , ≤ 6.1.* (semver)
Unaffected: 6.5.5 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/target/iscsi/iscsi_target_configfs.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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          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/target/iscsi/iscsi_target_configfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.133",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.326",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "4.19.295",
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                {
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                  "versionEndExcluding": "6.1.55",
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                {
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              "negate": false,
              "operator": "OR"
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          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()\n\nThe function lio_target_nacl_info_show() uses sprintf() in a loop to print\ndetails for every iSCSI connection in a session without checking for the\nbuffer length. With enough iSCSI connections it\u0027s possible to overflow the\nbuffer provided by configfs and corrupt the memory.\n\nThis patch replaces sprintf() with sysfs_emit_at() that checks for buffer\nboundries."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-07T15:21:31.757Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083"
        },
        {
          "url": "https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a"
        },
        {
          "url": "https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2"
        },
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          "url": "https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d"
        },
        {
          "url": "https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50"
        },
        {
          "url": "https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4"
        }
      ],
      "title": "scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53676",
    "datePublished": "2025-10-07T15:21:31.757Z",
    "dateReserved": "2025-10-07T15:16:59.664Z",
    "dateUpdated": "2025-10-07T15:21:31.757Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53676\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-07T16:15:51.653\",\"lastModified\":\"2025-10-08T19:38:09.863\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()\\n\\nThe function lio_target_nacl_info_show() uses sprintf() in a loop to print\\ndetails for every iSCSI connection in a session without checking for the\\nbuffer length. With enough iSCSI connections it\u0027s possible to overflow the\\nbuffer provided by configfs and corrupt the memory.\\n\\nThis patch replaces sprintf() with sysfs_emit_at() that checks for buffer\\nboundries.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Sightings

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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.