What is CVE-2018-5843?

CVE-2018-5843 is a high-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-06-12.

How severe is CVE-2018-5843?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2018-5843 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Google Android

CVE-2018-5843

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.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (6.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android
Qualcomm, Inc. Android For Msm, Firefox Os Qrd — versions All Android releases from CAF using the Linux kernel

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

product-security@qualcomm.com (Patch, Third Party Advisory, x_refsource_MISC)
nvd@nist.gov (Third Party Advisory)

Frequently asked questions

What is CVE-2018-5843?: CVE-2018-5843 is a high-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-06-12.
How severe is CVE-2018-5843?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-5843 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.