CVE-2019-17192

CRITICAL

Signal Private Messenger < 4.47.7 - Denial of Service via Malformed WebRTC RTP Packets

Title source: llm
STIX 2.1

Description

The WebRTC component in the Signal Private Messenger application through 4.47.7 for Android processes videoconferencing RTP packets before a callee chooses to answer a call, which might make it easier for remote attackers to cause a denial of service or possibly have unspecified other impact via malformed packets. NOTE: the vendor plans to continue this behavior for performance reasons unless a WebRTC design change occurs

References (3)

Core 3
Core References
Third Party Advisory x_refsource_misc
https://news.ycombinator.com/item?id=21161432
Third Party Advisory x_refsource_misc
https://twitter.com/moxie/status/1180226374851710976

Scores

CVSS v3 9.8
EPSS 0.0273
EPSS Percentile 84.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-670
Status published
Products (1)
signal/private_messenger < 4.47.7
Published Oct 05, 2019
Tracked Since Feb 18, 2026