PT-2020-11777 · Google+1 · Android Kernel+1

Published 2020-09-17 · Updated 2021-07-21 · CVE-2020-0433

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a possible use after free due to improper locking in the blk mq queue tag busy iter function of blk-mq-tag.c. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android kernel, consider applying a patch that properly addresses the locking issue in the blk mq queue tag busy iter function to prevent use after free.

Fix

Improper Locking

Use After Free

Weakness Enumeration

CWE-667

CWE-416

Related Identifiers

CVE-2020-0433

SUSE-SU-2021:1175-1

SUSE-SU-2021:1176-1

SUSE-SU-2021:1210-1

SUSE-SU-2021:1573-1

SUSE-SU-2021:1596-1

SUSE-SU-2021:1617-1

SUSE-SU-2021:1623-1

SUSE-SU-2021:1624-1

SUSE-SU-2021:1728-1

SUSE-SU-2021_1175-1

SUSE-SU-2021_1210-1

SUSE-SU-2021_1617-1

SUSE-SU-2021_1623-1

SUSE-SU-2021_1728-1

Affected Products

Android Kernel

Suse

References · 208

• https://osv.dev/vulnerability/CVE-2020-0433 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1210-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-0433 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-0433 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1624-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-0433 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-0433 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2021:1617-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-0433 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1573-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1596-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1175-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1623-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-0433 · Security Note
• https://source.android.com/security/bulletin/pixel/2020-09-01 · Vendor Advisory