CVE-2019-17192

moderate-risk
Published 2019-10-05

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

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Private Messenger

Affected Vendors

Signal

References (6)

Third Party Advisory https://bugs.chromium.org/p/project-zero/issues/detail?id=1936
Third Party Advisory https://news.ycombinator.com/item?id=21161432
Third Party Advisory https://twitter.com/moxie/status/1180226374851710976
Third Party Advisory https://bugs.chromium.org/p/project-zero/issues/detail?id=1936
Third Party Advisory https://news.ycombinator.com/item?id=21161432
Third Party Advisory https://twitter.com/moxie/status/1180226374851710976
40
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal