UBUNTU-CVE-2021-39714

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2021-39714
Published: 16 Mar 2022, 15:15
Last modified:04 Jul 2026, 19:19

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Mar 2022, 15:15
Published
Vulnerability first disclosed
04 Jul 2026, 19:19
Last Modified
Vulnerability information updated

Description

In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow. 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-205573273References: Upstream kernel

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux

    < 4.4.0-229.263

  • ubuntu•linux-aws

    < 4.4.0-1109.115 | < 4.4.0-1145.160

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-azure

    < 4.13.0-1005.7 | all

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1079.86 | all

  • ubuntu•linux-gcp

    < 4.13.0-1002.5 | all

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-hwe

    < 4.13.0-32.35~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1110.120

  • ubuntu•linux-lts-xenial

    < 4.4.0-229.263~14.04.1

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-nvidia-7.0

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    all

  • ubuntu•linux-oem-5.13

    all

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.11

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.8

    all

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.11

    all

  • ubuntu•linux-riscv-5.8

    all

  • ubuntu•linux-snapdragon

    < 4.15.0-1053.57

References (6)