Resource exhaustion in Signal

CVE-2018-16132

The image rendering component (createGenericPreview) of the Open Whisper Signal app through 2.29.0 for iOS fails to check for unreasonably large images before manipulating received images. This allows for a large image sent to a user to exhaust all available memory when the image is displayed, resulting in a forced restart of the device.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.011 (61.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-16132?
CVE-2018-16132 is a high-severity vulnerability in Signal, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2018-08-29.
How severe is CVE-2018-16132?
High severity. CVSS v3 base score is 8.6 out of 10.