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VULNERABILITIES

CVE-2019-9970 Details

Description

Open Whisper Signal (aka Signal-Desktop) through 1.23.1 and the Signal Private Messenger application through 4.35.3 for Android are vulnerable to an IDN homograph attack when displaying messages containing URLs. This occurs because the application produces a clickable link even if (for example) Latin and Cyrillic characters exist in the same domain name, and the available font has an identical representation of characters from different alphabets.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/blazeinfosec/advisories/blob/master/signal-advisory.txt CVEThird Party Advisory
http://www.securityfocus.com/bid/107550 CVEThird Party AdvisoryVDB Entry
https://github.com/blazeinfosec/advisories/blob/master/signal-advisory.txt [email protected]Third Party Advisory
http://www.securityfocus.com/bid/107550 [email protected]Third Party AdvisoryVDB Entry

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
signal private messenger
<= 4.35.3

CPE

  • cpe:2.3:a:signal:private_messenger:*:*:*:*:*:android:*:*

Remediation

  • No remediation found in references.
signal signal-desktop
<= 1.23.1

CPE

  • cpe:2.3:a:signal:signal-desktop:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2019-9970
NVD Published Date:
Mar 24, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2019-9970 Details - Not Deferred