SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-25370

Samsung Mobile Devices Memory Corruption Vulnerability

KEVMEDIUM 4.4EPSS 0.89%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 29 November 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

CVSS 3.1
4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS
0.89% probability · 57th percentile
CISA KEV
Listed 8 November 2022 · due 29 November 2022
Weakness
CWE-416, CWE-703
Affected
samsung/android
Source
mobile.security@samsung.com

CISA notes

Apply updates per vendor instructions. https://security.samsungmobile.com/securityUpdate.smsb; https://nvd.nist.gov/vuln/detail/CVE-2021-25370

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.