What is CVE-2018-6339?

CVE-2018-6339 is a critical-severity vulnerability in Facebook Whatsapp Business For Android, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2019-06-14.

How severe is CVE-2018-6339?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Facebook Whatsapp Business For Android

CVE-2018-6339

When receiving calls using WhatsApp on Android, a stack allocation failed to properly account for the amount of data being passed in. An off-by-one error meant that data was written beyond the allocated space on the stack. This issue affects WhatsApp for Android starting in version 2.18.180 and was fixed in version 2.18.295. It also affects WhatsApp Business for Android starting in version v2.18.103 and was fixed in version v2.18.150.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (73.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Facebook Whatsapp Business For Android — versions 2.18.150, 2.18.103, unspecified
Facebook Whatsapp For Android — versions 2.18.295, 2.18.180, unspecified
Whatsapp
Whatsapp Whatsapp_business

Weakness classification (CWE)

References

cve-assign@fb.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-6339?: CVE-2018-6339 is a critical-severity vulnerability in Facebook Whatsapp Business For Android, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2019-06-14.
How severe is CVE-2018-6339?: Critical severity. CVSS v3 base score is 9.8 out of 10.