PT-2018-6767 · Linux+3 · Linux Kernel+3

Yunlei He · Published 2017-09-14 · Updated 2019-03-18 · CVE-2017-18241

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.13

Description: The issue allows local users to cause a denial of service, resulting in a NULL pointer dereference and panic. This occurs when using a noflush merge option that triggers a NULL value for a flush cmd control data structure.

Recommendations: For versions prior to 4.13, update to version 4.13 or later to resolve the issue.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2017-2206

ALT-PU-2018-1991

CVE-2017-18241

DSA-4187-1

DSA-4188-1

OPENSUSE-SU-2018_1773-1

SUSE-SU-2018:1772-1

SUSE-SU-2018:1816-1

SUSE-SU-2018:1855-1

SUSE-SU-2018:1855-2

USN-3910-1

USN-3910-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 176

• https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e0982 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2018:1772-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3910-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18241 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-6133 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:1816-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3910-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1120 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-18241 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-18241 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18241 · Security Note
• https://usn.ubuntu.com/3910-2 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4187-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-18241 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982 · Vendor Advisory