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CVE-2021-0961

Published: 15 December 2021

In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. 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-196046570References: Upstream kernel

Notes

AuthorNote
sbeattie
xt_quota2 is specific to the android kernel, and not included
in Ubuntu kernels. See introductory commit at
https://android.googlesource.com/kernel/common/+/10cda83af99dd60

Priority

Medium

Cvss 3 Severity Score

4.4

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Not vulnerable
(android specific)
upstream Not vulnerable
(debian: Android-specific xt_quota2 code)
xenial Not vulnerable
(android specific)
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Not vulnerable
(android specific)
upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Not vulnerable
(android specific)
upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-azure-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable

impish Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable

impish Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-bluefield
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gcp-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable

impish Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-ibm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Does not exist

impish Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Not vulnerable
(android specific)
upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-oem-5.10
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable

impish Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Not vulnerable
(android specific)
impish Not vulnerable
(android specific)
trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-riscv-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(android specific)
hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(android specific)
focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Does not exist

upstream Not vulnerable
(android specific)
xenial Not vulnerable
(android specific)

Severity score breakdown

Parameter Value
Base score 4.4
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N