cve-2023-52633
Vulnerability from cvelistv5
Published
2024-04-02 06:49
Modified
2024-11-04 14:50
Severity ?
Summary
um: time-travel: fix time corruption
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:03:21.364Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52633",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:53:36.022908Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:38.365Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/um/kernel/time.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0c7478a2da3f",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "4f7dad73df4c",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "de3e9d8e8d1a",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "b427f55e9d41",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "abe4eaa8618b",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/um/kernel/time.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\num: time-travel: fix time corruption\n\nIn \u0027basic\u0027 time-travel mode (without =inf-cpu or =ext), we\nstill get timer interrupts. These can happen at arbitrary\npoints in time, i.e. while in timer_read(), which pushes\ntime forward just a little bit. Then, if we happen to get\nthe interrupt after calculating the new time to push to,\nbut before actually finishing that, the interrupt will set\nthe time to a value that\u0027s incompatible with the forward,\nand we\u0027ll crash because time goes backwards when we do the\nforwarding.\n\nFix this by reading the time_travel_time, calculating the\nadjustment, and doing the adjustment all with interrupts\ndisabled."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T14:50:07.336Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025"
        },
        {
          "url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c"
        },
        {
          "url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283"
        },
        {
          "url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c"
        }
      ],
      "title": "um: time-travel: fix time corruption",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52633",
    "datePublished": "2024-04-02T06:49:11.596Z",
    "dateReserved": "2024-03-06T09:52:12.092Z",
    "dateUpdated": "2024-11-04T14:50:07.336Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52633\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-02T07:15:41.097\",\"lastModified\":\"2024-04-02T12:50:42.233\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\num: time-travel: fix time corruption\\n\\nIn \u0027basic\u0027 time-travel mode (without =inf-cpu or =ext), we\\nstill get timer interrupts. These can happen at arbitrary\\npoints in time, i.e. while in timer_read(), which pushes\\ntime forward just a little bit. Then, if we happen to get\\nthe interrupt after calculating the new time to push to,\\nbut before actually finishing that, the interrupt will set\\nthe time to a value that\u0027s incompatible with the forward,\\nand we\u0027ll crash because time goes backwards when we do the\\nforwarding.\\n\\nFix this by reading the time_travel_time, calculating the\\nadjustment, and doing the adjustment all with interrupts\\ndisabled.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: um: viaje en el tiempo: corrige la corrupci\u00f3n del tiempo En el modo de viaje en el tiempo \u0027b\u00e1sico\u0027 (sin =inf-cpu o =ext), todav\u00eda obtenemos interrupciones del temporizador. Esto puede suceder en momentos arbitrarios en el tiempo, es decir, mientras est\u00e1 en timer_read(), lo que adelanta un poco el tiempo. Luego, si recibimos la interrupci\u00f3n despu\u00e9s de calcular el nuevo tiempo al que enviar, pero antes de finalizarlo, la interrupci\u00f3n establecer\u00e1 el tiempo en un valor que es incompatible con el avance, y fallaremos porque el tiempo retrocede cuando hacer el reenv\u00edo. Solucione este problema leyendo time_travel_time, calculando el ajuste y realizando el ajuste, todo con las interrupciones desactivadas.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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.
  • 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.