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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
6.8 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
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
Date Public
2016-01-31 00:00
Show details on NVD website
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            "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."
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            "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"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:10:10+00:00",
      "cve": "CVE-2016-0723",
      "id": "CVE-2016-0723",
      "initial_release_date": "2016-01-01T00:00:00+00:00",
      "product_status:known_affected": "55",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Kernel memory disclosure and crash in tty layer",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-0723.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T02:22:50Z",
      "cve": "CVE-2016-0723",
      "id": "CVE-2016-0723",
      "initial_release_date": "2023-02-15T05:09:23Z",
      "product_status:known_affected": "24",
      "product_status:known_not_affected": "117",
      "product_status:recommended": "526",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-0723",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-0723.json",
      "version": "17"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.