CVE-2021-25489: Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to…

PriorityP279medium5.5CVSS 3.1

AVLACLPRLUINSUCNINAH

KEVITW

CISA Known Exploited Vulnerabilitydue 2023-07-20

Exploited in the wild

EPSS

0.52%

40.1th percentile

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
samsung	android	—	—
samsung	android	—	—
samsung	android	—	—
samsung	android	—	—
samsung_mobile	samsung_mobile_devices	>= O(8.1), P(9.0), Q(10.0), R(11.0) < SMR Oct-2021 Release 1	SMR Oct-2021 Release 1

Detection & IOCsextracted from sources · hover to see the quote

→Vulnerability is exploitable only after radio permission is gained; monitor for processes or apps acquiring radio-level permissions on Samsung devices as a precursor indicator ↗
→Target attack surface is the modem interface driver on Samsung Mobile Devices; monitor for unexpected kernel panics or crashes originating from the modem interface driver layer ↗

·Vulnerability affects Samsung Mobile Devices on firmware prior to SMR Oct-2021 Release 1; devices patched at or after this release are not affected ↗
·Exploitation requires radio permission as a prerequisite; the vulnerability is not directly reachable from unprivileged context ↗

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.9MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C

vulncheck3.3LOW

cisa5.5MEDIUM

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