Vulnerability CVE-2018-20655


Published: 2019-06-14

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.

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

Vendor: Whatsapp
Product: Whatsapp 
Version:
2.8.7
2.8.6
2.8.4
2.8.3
2.8.2
2.8.1
2.6.9
2.6.7
2.6.6
2.6.5
2.6.4
2.6.10
2.2.5
2.17.7
2.17.5
2.17.4
2.17.3
2.17.2
2.17.1
2.16.9
2.16.8
2.16.7
2.16.6
2.16.5
2.16.4
2.16.3
2.16.20
2.16.2
2.16.19
2.16.18
2.16.17
2.16.16
2.16.15
2.16.14
2.16.13
2.16.12
2.16.11
2.16.10
2.16.1
2.12.9
2.12.8
2.12.7
2.12.6
2.12.4
2.12.3
2.12.2
2.12.17
2.12.16
2.12.15
2.12.14
2.12.13
2.12.12
2.12.11
2.12.10
2.12.1
2.11.9
2.11.8
2.11.7
2.11.6
2.11.5
2.11.4
2.11.3
2.11.16
2.11.15
2.11.14
2.11.12
2.11.11
2.10.2
2.10.1

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
http://www.securityfocus.com/bid/108805
https://www.facebook.com/security/advisories/cve-2018-20655/

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