PT-2019-3349 · Linux+4 · Linux Kernel+4

Syzbot · Published 2019-05-28 · Updated 2023-11-09 · CVE-2019-15223

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.1.8

Description The issue is related to a NULL pointer dereference in the sound/usb/line6/driver.c driver, which can be caused by a malicious USB device. This can lead to a denial of service.

Recommendations For Linux kernel versions prior to 5.1.8, update to version 5.1.8 or later to resolve the issue. As a temporary workaround, consider disabling the use of USB devices from untrusted sources to minimize the risk of exploitation. Restrict access to the sound/usb/line6/driver.c driver to minimize the risk of denial of service.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2019-2024

ALT-PU-2019-2036

ALT-PU-2019-2120

ALT-PU-2019-2311

ALT-PU-2020-1198

ALT-PU-2020-1501

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2019-03479

CESA-2020_1567

CESA-2020_1769

CVE-2019-15223

RHSA-2020:1567

RHSA-2020:1769

RHSA-2020_1567

RHSA-2020_1769

USN-4147-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Ubuntu

References · 35

• 🔥 https://syzkaller.appspot.com/bug?id=0c1e517c657d3de2361cb0cc2d3a8663c25039a7 · Exploit
• https://ubuntu.com/security/CVE-2019-15926 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-15223 · Security Note
• https://ubuntu.com/security/CVE-2019-13631 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15217 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15220 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15538 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-03479 · Security Note
• https://usn.ubuntu.com/4147-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-15223 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-15223 · Security Note
• https://ubuntu.com/security/CVE-2019-9506 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b074ab7fc0d575247b9cc9f93bb7e007ca38840 · Patch
• https://ubuntu.com/security/notices/USN-4147-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15218 · Vendor Advisory