CVE-2016-0723

Aliases:UBUNTU-CVE-2016-0723DEBIAN-CVE-2016-0723
Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 08 Feb 2016, 02:00
Last modified:05 Aug 2024, 22:30

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.8 MEDIUM
v3.0 (nvd)
EPSS Score
0.38% LOW
0% probability +0.36%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Feb 2016, 02:00
Published
Vulnerability first disclosed
05 Aug 2024, 22:30
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.0•MEDIUM•Score: 6.8CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  • v2.0•MEDIUM•Score: 5.6AV:L/AC:L/Au:N/C:P/I:N/A:C

EPSS Trends

Current EPSS score: 0.38%• Percentile: 32%

Techniques & Countermeasures

  • CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • debian•linux

    < 4.3.3-6 | < 4.3.3-6 | < 4.3.3-6 | < 4.3.3-6

  • ubuntu•linux

    < 3.13.0-83.127

  • ubuntu•linux-azure

    all

  • ubuntu•linux-azure-6.11

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.15

    all

  • ubuntu•linux-gcp

    all

  • ubuntu•linux-gcp-6.11

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gkeop

    all

  • ubuntu•linux-hwe

    all

  • ubuntu•linux-hwe-6.11

    all

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-lowlatency-hwe-6.11

    all

  • ubuntu•linux-lts-utopic

    < 3.16.0-69.89~14.04.1

  • ubuntu•linux-lts-vivid

    < 3.19.0-56.62~14.04.1

  • ubuntu•linux-lts-wily

    < 4.2.0-34.39~14.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-realtime

    all | all

  • ubuntu•linux-riscv

    all | all | all

  • linux•linux_kernel

    ≤ 4.4.1

References (41)