PT-2018-2560 · Linux+3 · Linux Kernel+3

Jann Horn · Published 2018-07-06 · Updated 2023-02-24 · CVE-2018-16276

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.17.7

Description The issue exists due to insufficient input validation in the yurex USB driver, specifically in the yurex read function within the drivers/usb/misc/yurex.c file. This can be exploited by local attackers to crash the kernel or potentially escalate privileges. The vulnerability is related to incorrect bounds checking in the yurex read function, allowing for user access read/writes that could lead to a kernel crash or privilege escalation.

Recommendations For Linux kernel versions prior to 4.17.7, update to version 4.17.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the yurex USB driver to minimize the risk of exploitation.

Fix

Memory Corruption

RCE

Weakness Enumeration

CWE-787

CWE-20

Related Identifiers

ALT-PU-2018-2029

ALT-PU-2018-2032

ALT-PU-2018-2033

BDU:2019-00979

CVE-2018-16276

DLA-1529-1

DLA-1531-1

DSA-4308-1

OPENSUSE-SU-2018_3202-1

SUSE-SU-2018:2879-1

SUSE-SU-2018:2908-1

SUSE-SU-2018:2908-2

SUSE-SU-2018:3003-1

SUSE-SU-2018:3004-1

SUSE-SU-2018:3083-1

SUSE-SU-2018:3084-1

SUSE-SU-2018:3088-1

SUSE-SU-2018:3618-1

SUSE-SU-2018:3659-1

SUSE-SU-2019:0095-1

USN-3776-1

USN-3776-2

USN-3847-1

USN-3847-2

USN-3847-3

USN-3849-1

USN-3849-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 378

• https://github.com/torvalds/linux/commit/f1e255d60ae66a9f672ff9a207ee6cd8e33d2679 · Patch
• https://usn.ubuntu.com/3776-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3847-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3083-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-6555 · Vendor Advisory
• https://debian.org/security/2018/dsa-4308 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3776-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-17182 · Vendor Advisory
• https://usn.ubuntu.com/3849-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3847-3 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:0095-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3849-1 · Vendor Advisory
• https://usn.ubuntu.com/3776-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-12896 · Vendor Advisory
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.7 · Vendor Advisory