CVE-2018-9840
First published: Tue Apr 10 2018(Updated: )
The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers to bypass the screen locker feature via certain rapid sequences of actions that include app opening, clicking on cancel, and using the home button.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Signal Signal | <2.23.2 |
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Reference Links
Frequently Asked Questions
What is CVE-2018-9840?
CVE-2018-9840 is a vulnerability in the Open Whisper Signal app before version 2.23.2 for iOS that allows physically proximate attackers to bypass the screen locker feature.
How can an attacker exploit CVE-2018-9840?
An attacker can exploit CVE-2018-9840 by performing certain rapid sequences of actions, including app opening, clicking on cancel, and using the home button.
What is the severity of CVE-2018-9840?
The severity of CVE-2018-9840 is medium, with a severity value of 6.8.
Which version of Open Whisper Signal app is affected by CVE-2018-9840?
The Open Whisper Signal app before version 2.23.2 for iOS is affected by CVE-2018-9840.
Is there a fix available for CVE-2018-9840?
Yes, the fix for CVE-2018-9840 is available in version 2.23.2 of the Open Whisper Signal app for iOS.
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