CVE-2018-21054

CRITICAL

Android M(6.0) N(7.x) O(8.x) - Integer Underflow and Buffer Overflow in eCryptFS

Title source: llm

Description

An issue was discovered on Samsung mobile devices with M(6.0), N(7.x) and O(8.x) except exynos9610/9820 in all Platforms, M(6.0) except MSM8909 SC77xx/9830 exynos3470/5420, N(7.0) except MSM8939, N(7.1) except MSM8996 SDM6xx/M6737T software. There is an integer underflow with a resultant buffer overflow in eCryptFS. The Samsung ID is SVE-2017-11857 (September 2018).

References (1)

Core 1

Core References

Vendor Advisory x_refsource_confirm

https://security.samsungmobile.com/securityUpdate.smsb

Scores

CVSS v3 9.8

EPSS 0.0044

EPSS Percentile 35.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-190

Status published

Products (8)

google/android 6.0

google/android 7.0

google/android 7.1.0

google/android 7.1.1

google/android 7.1.2

google/android 8.0

google/android 8.1

google/android 7.1

Published Apr 08, 2020

Tracked Since Feb 18, 2026