FKIE_CVE-2016-0723

Vulnerability from fkie_nvd - Published: 2016-02-08 03:59 - Updated: 2026-06-17 00:38
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.
References
secalert@redhat.comhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439Vendor Advisory
secalert@redhat.comhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
secalert@redhat.comhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
secalert@redhat.comhttp://source.android.com/security/bulletin/2016-07-01.html
secalert@redhat.comhttp://www.debian.org/security/2016/dsa-3448
secalert@redhat.comhttp://www.debian.org/security/2016/dsa-3503
secalert@redhat.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
secalert@redhat.comhttp://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
secalert@redhat.comhttp://www.securityfocus.com/bid/82950
secalert@redhat.comhttp://www.securitytracker.com/id/1035695
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2929-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2929-2
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2930-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2930-2
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2930-3
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2932-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2948-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2948-2
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2967-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2967-2
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1296253
secalert@redhat.comhttps://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439
secalert@redhat.comhttps://security-tracker.debian.org/tracker/CVE-2016-0723
secalert@redhat.comhttps://support.f5.com/csp/article/K43650115
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
af854a3a-2127-422b-91ae-364da2661108http://source.android.com/security/bulletin/2016-07-01.html
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3448
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3503
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/82950
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1035695
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2929-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2929-2
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2930-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2930-2
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2930-3
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2932-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2948-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2948-2
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2967-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2967-2
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1296253
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439
af854a3a-2127-422b-91ae-364da2661108https://security-tracker.debian.org/tracker/CVE-2016-0723
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K43650115
Impacted products
Vendor Product Version
linux linux_kernel *

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EDD97C46-E284-47DB-B96A-3B8D5013F2F7",
              "versionEndIncluding": "4.4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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."
    }
  ],
  "evaluatorComment": "\u003ca href=\"http://cwe.mitre.org/data/definitions/416.html\"\u003eCWE-416: Use After Free\u003c/a\u003e",
  "id": "CVE-2016-0723",
  "lastModified": "2026-06-17T00:38:05.653",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 5.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 7.8,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-02-08T03:59:09.840",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://source.android.com/security/bulletin/2016-07-01.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.debian.org/security/2016/dsa-3448"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.debian.org/security/2016/dsa-3503"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securityfocus.com/bid/82950"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securitytracker.com/id/1035695"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2929-1"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2929-2"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2930-1"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2930-2"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2930-3"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2932-1"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2948-1"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2948-2"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2967-1"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.ubuntu.com/usn/USN-2967-2"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1296253"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://security-tracker.debian.org/tracker/CVE-2016-0723"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://support.f5.com/csp/article/K43650115"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html"
    },
    {
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
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      "url": "http://www.debian.org/security/2016/dsa-3503"
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      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "http://www.securityfocus.com/bid/82950"
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    {
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    {
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    {
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      "url": "http://www.ubuntu.com/usn/USN-2930-1"
    },
    {
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      "url": "http://www.ubuntu.com/usn/USN-2930-2"
    },
    {
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      "url": "http://www.ubuntu.com/usn/USN-2930-3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ubuntu.com/usn/USN-2932-1"
    },
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      "url": "http://www.ubuntu.com/usn/USN-2948-1"
    },
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      "url": "http://www.ubuntu.com/usn/USN-2948-2"
    },
    {
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      "url": "http://www.ubuntu.com/usn/USN-2967-1"
    },
    {
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      "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"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-362"
        },
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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