CVE-2018-20961

Aliases:UBUNTU-CVE-2018-20961DEBIAN-CVE-2018-20961
Advisory lineage Upstream: 0 Downstream: 3
Modified
Published: 07 Aug 2019, 14:48
Last modified:05 Aug 2024, 12:19

Vulnerability Summary

Overall Risk (default)
critical
90/100
CVSS Score
10 HIGH
v2.0 (nvd)
EPSS Score
6.34% LOW
6% probability +0.57%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

07 Aug 2019, 14:48
Published
Vulnerability first disclosed
05 Aug 2024, 12:19
Last Modified
Vulnerability information updated

Description

In the Linux kernel before 4.16.4, a double free vulnerability in the f_midi_set_alt function of drivers/usb/gadget/function/f_midi.c in the f_midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact.

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.4CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 10AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 6.34%• Percentile: 93%

Techniques & Countermeasures

  • CWE-415•Double Free

    The product calls free() twice on the same memory address.

Affected Systems

  • debian•linux

    < 4.16.5-1 | < 4.16.5-1 | < 4.16.5-1 | < 4.16.5-1

  • ubuntu•linux

    < 4.4.0-165.193 | < 4.15.0-24.26

  • ubuntu•linux-aws

    < 4.4.0-1055.59

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1022.27 | all

  • ubuntu•linux-gcp

    < 4.15.0-1014.14~16.04.1 | < 4.15.0-1010.10

  • ubuntu•linux-gke

    all

  • ubuntu•linux-hwe

    < 4.15.0-24.26~16.04.1

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-lts-xenial

    < 4.4.0-165.193~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1009.12

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1123.132 | < 4.15.0-1013.14 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1127.135 | < 4.15.0-1053.57

  • linux•linux_kernel

    ≥ 4.4, < 4.4.190 | ≥ 4.5, < 4.9.96 | ≥ 4.10, < 4.14.36 | ≥ 4.15.0, < 4.16.4

References (14)