CVE-2023-31084 (GCVE-0-2023-31084)

Vulnerability from cvelistv5 – Published: 2023-04-24 00:00 – Updated: 2025-03-18 19:16
VLAI
Summary
An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-06 15:56 UTC
CWE
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2319 records in the last 180 days details
References
Show details on NVD website
To clipboard 

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                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AOATNX5UFL7V7W2QDIQKOHFFHYKWFP4W/"
              },
              {
                "name": "FEDORA-2023-4426b7005f",
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                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIEOLEOURP4BJZMIL7UGGPYRRB44UDN/"
              },
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                ],
                "url": "https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html"
              },
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                "name": "DSA-5480",
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                "url": "https://www.debian.org/security/2023/dsa-5480"
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                "tags": [
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                ],
                "url": "https://security.netapp.com/advisory/ntap-20230929-0003/"
              },
              {
                "name": "[debian-lts-announce] 20231019 [SECURITY] [DLA 3623-1] linux-5.10 security update",
                "tags": [
                  "mailing-list",
                  "x_transferred"
                ],
                "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
              },
              {
                "tags": [
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                ],
                "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b8c75e4a1b325ea0a9433fa8834be97b5836b946"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "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",
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                  "content": {
                    "id": "CVE-2023-31084",
                    "options": [
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                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
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                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-03-06T15:56:03.732857Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-833",
                    "description": "CWE-833 Deadlock",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-03-06T15:56:05.017Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "n/a",
              "vendor": "n/a",
              "versions": [
                {
                  "status": "affected",
                  "version": "n/a"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(\u0026fepriv-\u003esem) is called. However, wait_event_interruptible would put the process to sleep, and down(\u0026fepriv-\u003esem) may block the process."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "n/a",
                  "lang": "en",
                  "type": "text"
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          "providerMetadata": {
            "dateUpdated": "2024-03-25T00:41:59.267Z",
            "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
            "shortName": "mitre"
          },
          "references": [
            {
              "url": "https://lore.kernel.org/all/CA+UBctCu7fXn4q41O_3=id1+OdyQ85tZY1x+TkT-6OVBL6KAUw%40mail.gmail.com/"
            },
            {
              "name": "FEDORA-2023-75b22000cd",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AOATNX5UFL7V7W2QDIQKOHFFHYKWFP4W/"
            },
            {
              "name": "FEDORA-2023-4426b7005f",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIEOLEOURP4BJZMIL7UGGPYRRB44UDN/"
            },
            {
              "name": "DSA-5448",
              "tags": [
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              ],
              "url": "https://www.debian.org/security/2023/dsa-5448"
            },
            {
              "name": "[debian-lts-announce] 20230727 [SECURITY] [DLA 3508-1] linux security update",
              "tags": [
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              ],
              "url": "https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html"
            },
            {
              "name": "DSA-5480",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://www.debian.org/security/2023/dsa-5480"
            },
            {
              "url": "https://security.netapp.com/advisory/ntap-20230929-0003/"
            },
            {
              "name": "[debian-lts-announce] 20231019 [SECURITY] [DLA 3623-1] linux-5.10 security update",
              "tags": [
                "mailing-list"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
            },
            {
              "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b8c75e4a1b325ea0a9433fa8834be97b5836b946"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2023-31084",
        "datePublished": "2023-04-24T00:00:00.000Z",
        "dateReserved": "2023-04-24T00:00:00.000Z",
        "dateUpdated": "2025-03-18T19:16:50.035Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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