CVE-2021-39685

Aliases:UBUNTU-CVE-2021-39685DEBIAN-CVE-2021-39685
Advisory lineage Upstream: 0 Downstream: 22
Modified
Published: 16 Mar 2022, 14:04
Last modified:04 Aug 2024, 02:13

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.46% LOW
0% probability -0.55%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Mar 2022, 14:04
Published
Vulnerability first disclosed
04 Aug 2024, 02:13
Last Modified
Vulnerability information updated

Description

In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.4CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.46%• Percentile: 39%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•linux

    < 5.10.92-1 | < 5.15.5-2 | < 5.15.5-2 | < 5.15.5-2

  • ubuntu•linux

    all | < 4.4.0-229.263 | < 4.15.0-169.177 | < 5.4.0-100.113

  • ubuntu•linux-aws

    < 4.4.0-1109.115 | < 4.4.0-1145.160 | < 4.15.0-1121.129 | < 5.4.0-1066.69

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    < 5.13.0-1019.21~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1066.69~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2061.63 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1120.128~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1131.144~14.04.1 | < 4.15.0-1131.144~16.04.1 | all | < 5.4.0-1070.73

  • ubuntu•linux-azure-4.15

    < 4.15.0-1131.144

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    < 5.13.0-1021.24~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1070.73~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2043.47 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1028.31

  • ubuntu•linux-dell300x

    < 4.15.0-1035.40

  • ubuntu•linux-fips

    < 4.4.0-1079.86 | all | < 4.15.0-1078.87 | < 5.4.0-1043.49

  • ubuntu•linux-gcp

    < 4.15.0-1116.130~16.04.1 | all | < 5.4.0-1065.69

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1116.130

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    < 5.13.0-1021.25~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1065.69~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2026.28 | all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1063.66

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1063.66~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1034.35

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1034.35~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-169.177~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    < 5.13.0-37.42~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-100.113~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1015.16

  • ubuntu•linux-ibm-5.4

    < 5.4.0-1015.16~18.04.1

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1110.120 | < 4.15.0-1107.109 | < 5.4.0-1056.58

  • ubuntu•linux-lts-xenial

    < 4.4.0-229.263~14.04.1

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    all

Showing first 50 affected entries in server-rendered view.

References (15)