PT-2020-8729 · Samsung · Samsung Mobile Devices With N(7.X)+2

Published 2020-04-08 · Updated 2020-04-10 · CVE-2018-21085

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 An issue was discovered on Samsung mobile devices, which involves a race condition with a resultant use-after-free in vnswap deinit backing storage.

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 deinit backing storage function until a patch is available.

Fix

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

CVE-2018-21085

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://nvd.nist.gov/vuln/detail/CVE-2018-21085 · Security Note
• https://osv.dev/vulnerability/CVE-2018-21085 · Vendor Advisory
• https://security.samsungmobile.com/securityUpdate.smsb · Vendor Advisory
• https://t.me/cvenotify/2544 · Telegram Post