CVE-2016-0723 (GCVE-0-2016-0723)

Vulnerability from cvelistv5 – Published: 2016-02-08 02:00 – Updated: 2024-08-05 22:30
VLAI?
Summary
Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
https://security-tracker.debian.org/tracker/CVE-2… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2930-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2967-1 vendor-advisoryx_refsource_UBUNTU
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1296253 x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2930-2 vendor-advisoryx_refsource_UBUNTU
http://www.debian.org/security/2016/dsa-3503 vendor-advisoryx_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2967-2 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://git.kernel.org/cgit/linux/kernel/git/torva… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2930-3 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://source.android.com/security/bulletin/2016-… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2929-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2932-1 vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/82950 vdb-entryx_refsource_BID
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
http://www.securitytracker.com/id/1035695 vdb-entryx_refsource_SECTRACK
http://www.ubuntu.com/usn/USN-2948-1 vendor-advisoryx_refsource_UBUNTU
http://www.debian.org/security/2016/dsa-3448 vendor-advisoryx_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.ubuntu.com/usn/USN-2929-2 vendor-advisoryx_refsource_UBUNTU
https://github.com/torvalds/linux/commit/5c17c861… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2948-2 vendor-advisoryx_refsource_UBUNTU
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://support.f5.com/csp/article/K43650115 x_refsource_CONFIRM
Show details on NVD website

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\"http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/82950\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securitytracker.com/id/1035695\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2929-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2929-2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2930-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2930-2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2930-3\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2932-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2948-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2948-2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2967-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-2967-2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1296253\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security-tracker.debian.org/tracker/CVE-2016-0723\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://support.f5.com/csp/article/K43650115\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-200\"}, {\"lang\": \"en\", \"value\": \"CWE-362\"}, {\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2016-0723\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2016-02-08T03:59:09.840\",\"lastModified\":\"2025-04-12T10:46:40.837\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.\"},{\"lang\":\"es\",\"value\":\"Condici\u00f3n de carrera en la funci\u00f3n tty_ioctl en drivers/tty/tty_io.c en el kernel de Linux hasta la versi\u00f3n 4.4.1 permite a usuarios locales obtener informaci\u00f3n sensible de la memoria del kernel o provocar una denegaci\u00f3n de servicio (uso despu\u00e9s de liberaci\u00f3n y ca\u00edda de aplicaci\u00f3n) al hacer una llamada ioctl TIOCGETD ioctl durante el procesamiento de una llamada ioctl TIOCSETD.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H\",\"baseScore\":6.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":4.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:N/A:C\",\"baseScore\":5.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":7.8,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"},{\"lang\":\"en\",\"value\":\"CWE-362\"},{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.4.1\",\"matchCriteriaId\":\"EDD97C46-E284-47DB-B96A-3B8D5013F2F7\"}]}]}],\"references\":[{\"url\":\"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor 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href=\\\"http://cwe.mitre.org/data/definitions/416.html\\\"\u003eCWE-416: Use After Free\u003c/a\u003e\"}}"
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • 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.


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