Skip to content
OpenAdvisories
Unscored CVE-2021-39686 EUVD-2021-26043GHSA-9c4x-gw9f-7x8h

In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. This could lead…

Published Mar 16, 2022 · Updated Aug 4, 2024 · Assigned by google_android

Package: linux Package: linux Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-kvm Package: linux-lts-xenial Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.6 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.8 Package: linux-vmware Platform: Android Ecosystem: Debian Ecosystem: Ubuntu

Description

In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. 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-200688826References: Upstream kernel

Affected products

VendorProductAffectedFixed
— Android Android kernel —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.15.15-1 —
Debian 13 linux 5.15.15-1 —
Debian 12 linux 5.15.15-1 —
Debian 10 linux 4.19.232-1 DSA-5096-1
Debian 9 linux 4.9.303-1 DLA-2940-1
Debian 9 linux-4.19 4.19.232-1~deb9u1 DLA-2941-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-realtime +1 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-100.113 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1066.69 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1070.73 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1028.31 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1065.69 —
Ubuntu 20.04 LTS linux-gke 5.4.0-1063.66 —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1034.35 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1015.16 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1056.58 —
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1022.24 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1064.68 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1053.60 —
Ubuntu 20.04 LTS linux-riscv +22 No fix yet —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1066.69~18.04.1 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1070.73~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +12 No fix yet —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1065.69~18.04.1 —
Ubuntu 18.04 LTS linux-gke-5.4 5.4.0-1063.66~18.04.1 —
Ubuntu 18.04 LTS linux-gkeop-5.4 5.4.0-1034.35~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-100.113~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1015.16~18.04.1 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1064.68~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1053.60~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1069.73+fips2 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1073.76+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1043.49 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1067.71~20.04.1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro 18.04 LTS linux +5 No fix yet —
Ubuntu Pro 16.04 LTS linux-gcp +5 No fix yet —
Ubuntu Pro 14.04 LTS linux +3 No fix yet —

Advisories 4

References