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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (42.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Signal Private Messenger — versions 4.24.8
- Signal — versions Signal Messenger Android 4.24.8
Weakness classification (CWE)
References
- www.securityfocus.com/bid/106207 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.talosintelligence.com/vulnerability_reports/TALOS-2018-0656 (Exploit, Third Party Advisory)
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.