CVE-2017-15299 Information

Description

The KEYS subsystem in the Linux kernel through 4.13.7 mishandles use of add_key for a key that already exists but is uninstantiated which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted system call.

CVSS Vector

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

Reference

https://access.redhat.com/errata/RHSA-2018:0654 https://bugzilla.redhat.com/show_bug.cgi?id=1498016 https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html https://marc.info/?t=150654188100001&r=1&w=2 https://marc.info/?t=150783958600011&r=1&w=2 https://usn.ubuntu.com/3798-1/ https://usn.ubuntu.com/3798-2/ https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1499828.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5