CVE-2023-52872 (GCVE-0-2023-52872)
Vulnerability from cvelistv5
Published
2024-05-21 15:32
Modified
2025-05-04 12:49
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix race condition in status line change on dead connections gsm_cleanup_mux() cleans up the gsm by closing all DLCIs, stopping all timers, removing the virtual tty devices and clearing the data queues. This procedure, however, may cause subsequent changes of the virtual modem status lines of a DLCI. More data is being added the outgoing data queue and the deleted kick timer is restarted to handle this. At this point many resources have already been removed by the cleanup procedure. Thus, a kernel panic occurs. Fix this by proving in gsm_modem_update() that the cleanup procedure has not been started and the mux is still alive. Note that writing to a virtual tty is already protected by checks against the DLCI specific connection state.
References
Impacted products
Vendor Product Version
Linux Linux Version: dd37f657387853623f20c1b2482afbb9cd8ece33
Version: c568f7086c6e771c77aad13d727c70ef70e07243
Version: c568f7086c6e771c77aad13d727c70ef70e07243
Version: c568f7086c6e771c77aad13d727c70ef70e07243
Version: c568f7086c6e771c77aad13d727c70ef70e07243
Version: d834aba5f30d9a6f98f4ca1eb07e501f1989331c
Version: 692e847a8e6607909c4a3f98ab16ccee7849bd11
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-52872",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-29T18:43:05.660039Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-362",
                "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-06T15:02:28.263Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:11:36.237Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/81a4dd5e6c78f5d8952fa8c9d36565db1fe01444"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/df6cfab66ff2a44bd23ad5dd5309cb3421bb6593"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/19d34b73234af542cc8a218cf398dee73cdb1890"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/ce4df90333c4fe65acb8b5089fdfe9b955ce976a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3a75b205de43365f80a33b98ec9289785da56243"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/n_gsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "81a4dd5e6c78f5d8952fa8c9d36565db1fe01444",
              "status": "affected",
              "version": "dd37f657387853623f20c1b2482afbb9cd8ece33",
              "versionType": "git"
            },
            {
              "lessThan": "df6cfab66ff2a44bd23ad5dd5309cb3421bb6593",
              "status": "affected",
              "version": "c568f7086c6e771c77aad13d727c70ef70e07243",
              "versionType": "git"
            },
            {
              "lessThan": "19d34b73234af542cc8a218cf398dee73cdb1890",
              "status": "affected",
              "version": "c568f7086c6e771c77aad13d727c70ef70e07243",
              "versionType": "git"
            },
            {
              "lessThan": "ce4df90333c4fe65acb8b5089fdfe9b955ce976a",
              "status": "affected",
              "version": "c568f7086c6e771c77aad13d727c70ef70e07243",
              "versionType": "git"
            },
            {
              "lessThan": "3a75b205de43365f80a33b98ec9289785da56243",
              "status": "affected",
              "version": "c568f7086c6e771c77aad13d727c70ef70e07243",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d834aba5f30d9a6f98f4ca1eb07e501f1989331c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "692e847a8e6607909c4a3f98ab16ccee7849bd11",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/n_gsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.138",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.62",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.7",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.138",
                  "versionStartIncluding": "5.15.61",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.62",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.11",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.1",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.18.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.19.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: n_gsm: fix race condition in status line change on dead connections\n\ngsm_cleanup_mux() cleans up the gsm by closing all DLCIs, stopping all\ntimers, removing the virtual tty devices and clearing the data queues.\nThis procedure, however, may cause subsequent changes of the virtual modem\nstatus lines of a DLCI. More data is being added the outgoing data queue\nand the deleted kick timer is restarted to handle this. At this point many\nresources have already been removed by the cleanup procedure. Thus, a\nkernel panic occurs.\n\nFix this by proving in gsm_modem_update() that the cleanup procedure has\nnot been started and the mux is still alive.\n\nNote that writing to a virtual tty is already protected by checks against\nthe DLCI specific connection state."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T12:49:44.477Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/81a4dd5e6c78f5d8952fa8c9d36565db1fe01444"
        },
        {
          "url": "https://git.kernel.org/stable/c/df6cfab66ff2a44bd23ad5dd5309cb3421bb6593"
        },
        {
          "url": "https://git.kernel.org/stable/c/19d34b73234af542cc8a218cf398dee73cdb1890"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce4df90333c4fe65acb8b5089fdfe9b955ce976a"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a75b205de43365f80a33b98ec9289785da56243"
        }
      ],
      "title": "tty: n_gsm: fix race condition in status line change on dead connections",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52872",
    "datePublished": "2024-05-21T15:32:06.610Z",
    "dateReserved": "2024-05-21T15:19:24.264Z",
    "dateUpdated": "2025-05-04T12:49:44.477Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/81a4dd5e6c78f5d8952fa8c9d36565db1fe01444\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/df6cfab66ff2a44bd23ad5dd5309cb3421bb6593\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/19d34b73234af542cc8a218cf398dee73cdb1890\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/ce4df90333c4fe65acb8b5089fdfe9b955ce976a\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/3a75b205de43365f80a33b98ec9289785da56243\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:11:36.237Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52872\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-29T18:43:05.660039Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-362\", \"description\": \"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-29T18:43:09.022Z\"}}], \"cna\": {\"title\": \"tty: n_gsm: fix race condition in status line change on dead connections\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"dd37f657387853623f20c1b2482afbb9cd8ece33\", \"lessThan\": \"81a4dd5e6c78f5d8952fa8c9d36565db1fe01444\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c568f7086c6e771c77aad13d727c70ef70e07243\", \"lessThan\": \"df6cfab66ff2a44bd23ad5dd5309cb3421bb6593\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c568f7086c6e771c77aad13d727c70ef70e07243\", \"lessThan\": \"19d34b73234af542cc8a218cf398dee73cdb1890\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c568f7086c6e771c77aad13d727c70ef70e07243\", \"lessThan\": \"ce4df90333c4fe65acb8b5089fdfe9b955ce976a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c568f7086c6e771c77aad13d727c70ef70e07243\", \"lessThan\": \"3a75b205de43365f80a33b98ec9289785da56243\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d834aba5f30d9a6f98f4ca1eb07e501f1989331c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"692e847a8e6607909c4a3f98ab16ccee7849bd11\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/tty/n_gsm.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.138\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.62\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.1\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/tty/n_gsm.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/81a4dd5e6c78f5d8952fa8c9d36565db1fe01444\"}, {\"url\": \"https://git.kernel.org/stable/c/df6cfab66ff2a44bd23ad5dd5309cb3421bb6593\"}, {\"url\": \"https://git.kernel.org/stable/c/19d34b73234af542cc8a218cf398dee73cdb1890\"}, {\"url\": \"https://git.kernel.org/stable/c/ce4df90333c4fe65acb8b5089fdfe9b955ce976a\"}, {\"url\": \"https://git.kernel.org/stable/c/3a75b205de43365f80a33b98ec9289785da56243\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntty: n_gsm: fix race condition in status line change on dead connections\\n\\ngsm_cleanup_mux() cleans up the gsm by closing all DLCIs, stopping all\\ntimers, removing the virtual tty devices and clearing the data queues.\\nThis procedure, however, may cause subsequent changes of the virtual modem\\nstatus lines of a DLCI. More data is being added the outgoing data queue\\nand the deleted kick timer is restarted to handle this. At this point many\\nresources have already been removed by the cleanup procedure. Thus, a\\nkernel panic occurs.\\n\\nFix this by proving in gsm_modem_update() that the cleanup procedure has\\nnot been started and the mux is still alive.\\n\\nNote that writing to a virtual tty is already protected by checks against\\nthe DLCI specific connection state.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.138\", \"versionStartIncluding\": \"5.15.61\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.62\", \"versionStartIncluding\": \"6.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.11\", \"versionStartIncluding\": \"6.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.1\", \"versionStartIncluding\": \"6.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7\", \"versionStartIncluding\": \"6.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.18.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.19.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:49:44.477Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52872\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T12:49:44.477Z\", \"dateReserved\": \"2024-05-21T15:19:24.264Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:32:06.610Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.