CVE-2018-17155 Information

Description

In FreeBSD before 11.2-STABLE(r338983) 11.2-RELEASE-p4 11.1-RELEASE-p15 10.4-STABLE(r338984) and 10.4-RELEASE-p13 due to insufficient initialization of memory copied to userland in the getcontext and swapcontext system calls small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts privileged kernel data.

CVSS Vector

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

Reference

https://security.FreeBSD.org/advisories/FreeBSD-EN-18:12.mem.asc

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5