Buffer overflow in Facebook Whatsapp Business For iOS
CVE-2018-20655
When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for iOS prior to v2.18.90.24 and WhatsApp Business for iOS prior to v2.18.90.24.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Facebook Whatsapp Business For iOS — versions 2.18.90.24, unspecified
- Facebook Whatsapp For iOS — versions 2.18.90.24, unspecified
- Whatsapp Business
Weakness classification (CWE)
References
- www.facebook.com/security/advisories/cve-2018-20655/ (Third Party Advisory)
- www.securityfocus.com/bid/108805 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-20655?
- CVE-2018-20655 is a critical-severity vulnerability in Facebook Whatsapp Business For iOS, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2019-06-14.
- How severe is CVE-2018-20655?
- Critical severity. CVSS v3 base score is 9.8 out of 10.