CVE-2017-14885 Information

Description

In Android for MSM Firefox OS for MSM QRD Android with all Android releases from CAF using the Linux kernel wma_unified_link_peer_stats_event_handler function has a variable num_rates which represents the sum of all the peer_stats-num_rates. The current behavior in this function is to validate only the num_rates of the first peer stats (peer_stats-num_rates) against WMA_SVC_MSG_MAX_SIZE but not the sum of all the peer’s num_rates (num_rates) which may lead to a buffer overflow when the firmware buffer is copied in to the allocated buffer (peer_stats) as the size for the memory allocation - link_stats_results_size is based on num_rates.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/103254 https://source.android.com/security/bulletin/2018-03-01 https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/commit/?id=44e992e169dbd601f95e845961cb2181b167a553

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8