CVE-2018-16658 Information

Description

An issue was discovered in the Linux kernel before 4.18.6. An information leak in cdrom_ioctl_drive_status in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4 http://www.securityfocus.com/bid/105334 https://access.redhat.com/errata/RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:4154 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.6 https://github.com/torvalds/linux/commit/8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4 https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html https://usn.ubuntu.com/3797-1/ https://usn.ubuntu.com/3797-2/ https://usn.ubuntu.com/3820-1/ https://usn.ubuntu.com/3820-2/ https://usn.ubuntu.com/3820-3/ https://usn.ubuntu.com/3822-1/ https://usn.ubuntu.com/3822-2/ https://www.debian.org/security/2018/dsa-4308

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.1