PT-2022-25074 · Samsung · Exynos Modem

Sergey Toshin · Published 2022-11-09 · Updated 2022-11-10 · CVE-2022-39881

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Exynos modems versions prior to SMR Sep-2022 Release

Description The issue is related to an improper input validation vulnerability for processing SIB12 PDU in Exynos modems. This allows a remote attacker to read out of bounds memory.

Recommendations For Exynos modems versions prior to SMR Sep-2022 Release, update to the SMR Sep-2022 Release or later to resolve the issue. As a temporary workaround, consider restricting access to the SIB12 PDU processing functionality until a patch is available.

Fix

Out of bounds Read

RCE

Weakness Enumeration

CWE-125

CWE-20

Related Identifiers

CVE-2022-39881

Affected Products

Exynos Modem

References · 3

• https://security.samsungmobile.com/securityUpdate.smsb?year=2022&month=11 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-39881 · Security Note
• https://t.me/cibsecurity/52759 · Telegram Post