VulnerabilityModified
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.
CRITICAL 9.8EPSS 2.20%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.20% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- whatsapp/whatsapp · whatsapp/whatsapp business
- Source
- cve-assign@fb.com
References
- http://www.securityfocus.com/bid/108805Third Party Advisory, VDB Entry
- https://www.facebook.com/security/advisories/cve-2018-20655/Third Party Advisory
- http://www.securityfocus.com/bid/108805Third Party Advisory, VDB Entry
- https://www.facebook.com/security/advisories/cve-2018-20655/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.