What is CVE-2018-3988?

CVE-2018-3988 is a medium-severity vulnerability in Signal Private Messenger, classified under Information Disclosure. CVSS score: 4.7/10. Published 2018-12-10.

How severe is CVE-2018-3988?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Information disclosure in Signal Private Messenger

CVE-2018-3988

Signal Messenger for Android 4.24.8 may expose private information when using "disappearing messages." If a user uses the photo feature available in the "attach file" menu, then Signal will leave the picture in its own cache directory, which is available to any application on the system.

Vulnerability class: Information Disclosure

EPSS: 0.005 (40.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Signal Private_messenger — versions 4.24.8
N/a Signal — versions Signal Messenger Android 4.24.8

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

talos-cna@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3988?: CVE-2018-3988 is a medium-severity vulnerability in Signal Private Messenger, classified under Information Disclosure. CVSS score: 4.7/10. Published 2018-12-10.
How severe is CVE-2018-3988?: Medium severity. CVSS v3 base score is 4.7 out of 10.