CVE-2017-14140 Information

Description

The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn’t check the effective uid of the target process enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e585178f3f11c9fa08274b9 http://www.debian.org/security/2017/dsa-3981 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.9 http://www.securityfocus.com/bid/100876 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://github.com/torvalds/linux/commit/197e7e521384a23b9e585178f3f11c9fa08274b9 https://source.android.com/security/bulletin/pixel/2018-01-01 https://usn.ubuntu.com/3583-1/ https://usn.ubuntu.com/3583-2/

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