CVE-2018-21087: 
NixOS vulnerability analysis and mitigation

A heap-based buffer overflow vulnerability was discovered on Samsung mobile devices running Android versions L(5.x), M(6.x), and N(7.x). The vulnerability, identified as CVE-2018-21087 (Samsung ID: SVE-2017-10599), was discovered in January 2018 and affects the vnswap store function (NVD, CVE).

The vulnerability is a heap-based buffer overflow that occurs in the vnswap store function. It has been assigned a CVSS v3.1 base score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified as CWE-787 (Out-of-bounds Write) (NVD).

If exploited, this vulnerability can lead to privilege escalation on affected Samsung mobile devices. The high CVSS score indicates that successful exploitation could result in complete compromise of system confidentiality, integrity, and availability (NVD).

The vulnerability requires no user interaction and can be exploited with low attack complexity. No authentication is required for exploitation, making it particularly dangerous (NVD).

Samsung has addressed this vulnerability through a security update. Users of affected devices should ensure they have installed the latest security patches available through Samsung's mobile security updates (Samsung Mobile).