CVE-2019-1998 — In event_handler of keymaster_app

In event_handler of keymaster_app.c, there is possible resource exhaustion due to a table being lost on reboot. This could lead to local denial of service that is not fixed by a factory reset, with no additional execution privileges needed. User interaction is not needed for expl

01What is this vulnerability?

In event_handler of keymaster_app.c, there is possible resource exhaustion due to a table being lost on reboot. This could lead to local denial of service that is not fixed by a factory reset, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-9. Android ID: A-116055338.

02Affected products

Vendor	Product	Versions
Android	Android	Android-9

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-02-28T17:00:00.000Z
• Last modified: 2024-09-17T00:07:01.556Z

09References

• source.android.com — https://source.android.com/security/bulletin/2019-02-01
• www.securityfocus.com — http://www.securityfocus.com/bid/106946