CVE-2018-5843 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

In the function wma_pdev_div_info_evt_handler() in all Android releases from CAF (Android for MSM, Firefox OS for MSM, QRD Android) using the Linux Kernel, there is no upper bound check on the value event->num_chains_valid received from firmware which can lead to a buffer overwrite of the fixed size chain_rssi_result structure.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	-

Related Weaknesses (CWE)

CWE-119

References

https://www.codeaurora.org/security-bulletin/2018/05/11/may-2018-code-aurora-secPatchThird Party Advisory
https://source.android.com/security/bulletin/pixel/2018-05-01Third Party Advisory
https://www.codeaurora.org/security-bulletin/2018/05/11/may-2018-code-aurora-secPatchThird Party Advisory

FAQ

What is CVE-2018-5843?

CVE-2018-5843 is a vulnerability with a CVSS score of 7.8 (HIGH). In the function wma_pdev_div_info_evt_handler() in all Android releases from CAF (Android for MSM, Firefox OS for MSM, QRD Android) using the Linux Kernel, there is no upper bound check on the value e...

How severe is CVE-2018-5843?

CVE-2018-5843 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-5843?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.