CVE-2018-14043 Information

Description

mstdlib (aka the M Standard Library for C) 1.2.0 has incorrect file access control in situations where M_fs_perms_can_access attempts to delete an existing file (that lacks public read/write access) during a copy operation related to fs/m_fs.c and fs/m_fs_path.c. An attacker could create the file and then would have access to the data.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/Monetra/mstdlib/commit/db124b8f607dd0a40a9aef2d4d468fad433522a7 https://github.com/Monetra/mstdlib/issues/2

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8