CVE-2017-18202 Information

Description

The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146 http://www.securityfocus.com/bid/103161 https://access.redhat.com/errata/RHSA-2018:2772 https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146 https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.0