CVE-2021-39648

Aliases:UBUNTU-CVE-2021-39648DEBIAN-CVE-2021-39648
Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 15 Dec 2021, 18:05
Last modified:04 Aug 2024, 02:13

Vulnerability Summary

Overall Risk (default)
low
16/100
CVSS Score
4.1 MEDIUM
v3.1 (nvd)
EPSS Score
0.16% LOW
0% probability +0.11%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Dec 2021, 18:05
Published
Vulnerability first disclosed
04 Aug 2024, 02:13
Last Modified
Vulnerability information updated

Description

In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-160822094References: Upstream kernel

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
  • v2.0•LOW•Score: 1.9AV:L/AC:M/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.16%• Percentile: 6%

Techniques & Countermeasures

  • 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

    < 5.10.9-1 | < 5.10.9-1 | < 5.10.9-1 | < 5.10.9-1

  • ubuntu•linux

    all | < 4.4.0-222.255 | < 4.15.0-137.141 | < 5.4.0-67.75

  • ubuntu•linux-aws

    < 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1095.102 | < 5.4.0-1039.41

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1039.41~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2038.40 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1095.102~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1109.121~14.04.1 | < 4.15.0-1109.121~16.04.1 | all | < 5.4.0-1041.43

  • ubuntu•linux-azure-4.15

    < 4.15.0-1109.121

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1041.43~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1114.123~20.04.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2021.24 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-dell300x

    < 4.15.0-1013.17

  • ubuntu•linux-fips

    < 4.4.0-1072.78 | all | < 4.15.0-1054.62

  • ubuntu•linux-gcp

    < 4.15.0-1094.107~16.04.1 | all | < 5.4.0-1038.41

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1094.107

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1038.41~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1037.39

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1037.39~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1011.12

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1011.12~18.04.2

  • ubuntu•linux-hwe

    < 4.15.0-137.141~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-67.75~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1103.112 | < 4.15.0-1086.88 | < 5.4.0-1034.35

  • ubuntu•linux-lts-xenial

    < 4.4.0-222.255~14.04.1

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1014.15

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1066.74~16.04.1 | < 4.15.0-1066.74 | < 5.4.0-1039.42

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1039.42~18.04.1

  • ubuntu•linux-oracle-5.8

    all

  • ubuntu•linux-raspi

    < 5.4.0-1030.33

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1030.33~18.04.1

Showing first 50 affected entries in server-rendered view.

References (6)