What is CVE-2018-9559?

CVE-2018-9559 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-12-06.

How severe is CVE-2018-9559?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Google Android

CVE-2018-9559

In persist_set_key and other functions of cryptfs.cpp, there is a possible out-of-bounds write due to an uncaught error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9. Android ID: A-112731440.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (6.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 7.0, 7.1.1, 7.1.2
Google Inc. Android — versions Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security@android.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
security@android.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-9559?: CVE-2018-9559 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-12-06.
How severe is CVE-2018-9559?: High severity. CVSS v3 base score is 7.8 out of 10.