PT-2020-8730 · Samsung · Samsung Mobile Devices With N(7.X)+2

Published 2020-04-08 · Updated 2020-04-09 · CVE-2018-21086

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Samsung mobile devices with L(5.x) software Samsung mobile devices with M(6.0) software Samsung mobile devices with N(7.x) software

Description The issue is related to a race condition with a resultant double free in vnswap init backing storage. This condition can lead to unintended behavior.

Recommendations For Samsung mobile devices with L(5.x) software, update to a version that fixes the issue. For Samsung mobile devices with M(6.0) software, update to a version that fixes the issue. For Samsung mobile devices with N(7.x) software, update to a version that fixes the issue. As a temporary workaround, consider restricting access to the vnswap init backing storage function until a patch is available.

Fix

Race Condition

Double Free

Weakness Enumeration

CWE-362

CWE-415

Related Identifiers

CVE-2018-21086

Affected Products

Samsung Mobile Devices With L(5.X)

Samsung Mobile Devices With M(6.0)

Samsung Mobile Devices With N(7.X)

References · 4

• https://security.samsungmobile.com/securityUpdate.smsb · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-21086 · Security Note
• https://osv.dev/vulnerability/CVE-2018-21086 · Vendor Advisory
• https://t.me/cvenotify/2545 · Telegram Post