CVE-2024-56739 (GCVE-0-2024-56739)
Vulnerability from cvelistv5
Published
2024-12-29 11:30
Modified
2025-10-01 20:07
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: rtc: check if __rtc_read_time was successful in rtc_timer_do_work() If the __rtc_read_time call fails,, the struct rtc_time tm; may contain uninitialized data, or an illegal date/time read from the RTC hardware. When calling rtc_tm_to_ktime later, the result may be a very large value (possibly KTIME_MAX). If there are periodic timers in rtc->timerqueue, they will continually expire, may causing kernel softlockup.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
Version: 6610e0893b8bc6f59b14fed7f089c5997f035f88
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      "containers": "{\"adp\": [{\"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-2024-56739\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:57:41.389389Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-908\", \"description\": \"CWE-908 Use of Uninitialized Resource\"}]}], \"providerMetadata\": {\"orgId\": 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\"246f621d363988e7040f4546d20203dc713fa3e1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6610e0893b8bc6f59b14fed7f089c5997f035f88\", \"lessThan\": \"fde56535505dde3336df438e949ef4742b6d6d6e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6610e0893b8bc6f59b14fed7f089c5997f035f88\", \"lessThan\": \"dd4b1cbcc916fad5d10c2662b62def9f05e453d4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6610e0893b8bc6f59b14fed7f089c5997f035f88\", \"lessThan\": \"a1f0b4af90cc18b10261ecde56c6a56b22c75bd1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6610e0893b8bc6f59b14fed7f089c5997f035f88\", \"lessThan\": \"e77bce0a8c3989b4173c36f4195122bca8f4a3e1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6610e0893b8bc6f59b14fed7f089c5997f035f88\", \"lessThan\": \"e8ba8a2bc4f60a1065f23d6a0e7cbea945a0f40d\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/rtc/interface.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.38\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.38\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.325\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.287\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.231\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.174\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/rtc/interface.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/39ad0a1ae17b54509cd9e93dcd8cec16e7c12d3f\"}, {\"url\": \"https://git.kernel.org/stable/c/44b3257ff705d63d5f00ef8ed314a0eeb7ec37f2\"}, {\"url\": \"https://git.kernel.org/stable/c/0d68e8514d9040108ff7d1b37ca71096674b6efe\"}, {\"url\": \"https://git.kernel.org/stable/c/246f621d363988e7040f4546d20203dc713fa3e1\"}, {\"url\": \"https://git.kernel.org/stable/c/fde56535505dde3336df438e949ef4742b6d6d6e\"}, {\"url\": \"https://git.kernel.org/stable/c/dd4b1cbcc916fad5d10c2662b62def9f05e453d4\"}, {\"url\": \"https://git.kernel.org/stable/c/a1f0b4af90cc18b10261ecde56c6a56b22c75bd1\"}, {\"url\": \"https://git.kernel.org/stable/c/e77bce0a8c3989b4173c36f4195122bca8f4a3e1\"}, {\"url\": \"https://git.kernel.org/stable/c/e8ba8a2bc4f60a1065f23d6a0e7cbea945a0f40d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrtc: check if __rtc_read_time was successful in rtc_timer_do_work()\\n\\nIf the __rtc_read_time call fails,, the struct rtc_time tm; may contain\\nuninitialized data, or an illegal date/time read from the RTC hardware.\\n\\nWhen calling rtc_tm_to_ktime later, the result may be a very large value\\n(possibly KTIME_MAX). If there are periodic timers in rtc-\u003etimerqueue,\\nthey will continually expire, may causing kernel softlockup.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.325\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.287\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.231\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.174\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.64\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.11\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.2\", \"versionStartIncluding\": \"2.6.38\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"2.6.38\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T10:03:35.296Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56739\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T20:07:04.223Z\", \"dateReserved\": \"2024-12-29T11:26:39.757Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-29T11:30:08.512Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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