PT-2019-4213 · Linux+6 · Linux Kernel+6

Published 2019-10-02 · Updated 2021-05-28 · CVE-2019-19068

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 through 5.3.11

Description A memory leak in the rtl8xxxu submit int urb() function allows attackers to cause a denial of service by triggering usb submit urb() failures. This issue is related to uncontrolled resource consumption and can be exploited by a remote attacker to cause a denial of service.

Recommendations For Linux kernel versions through 5.3.11, consider disabling the rtl8xxxu submit int urb() function as a temporary workaround until a patch is available. Restrict access to the vulnerable rtl8xxxu core.c module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Memory Leak

Resource Exhaustion

Weakness Enumeration

CWE-401

CWE-400

Related Identifiers

ALSA-2020:4431

ALT-PU-2019-3180

ALT-PU-2019-3184

ALT-PU-2019-3268

ALT-PU-2020-1198

ALT-PU-2020-1421

ALT-PU-2020-1450

ALT-PU-2020-1501

ALT-PU-2020-1714

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2019-04810

CESA-2020_4431

CESA-2020_4609

CVE-2019-19068

DLA-2114-1

OPENSUSE-SU-2019:2675-1

OPENSUSE-SU-2019_2675-1

RHSA-2020:4431

RHSA-2020:4609

RHSA-2020_4431

RHSA-2020_4609

SUSE-SU-2019:3200-1

SUSE-SU-2019:3289-1

SUSE-SU-2019:3316-1

SUSE-SU-2019:3317-1

SUSE-SU-2019:3371-1

SUSE-SU-2019:3372-1

SUSE-SU-2019:3381-1

SUSE-SU-2020:0093-1

SUSE-SU-2020:0599-1

SUSE-SU-2020:0613-1

USN-4286-1

USN-4286-2

USN-4300-1

USN-4301-1

USN-4302-1

Affected Products

Alt Linux

Almalinux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 693

• https://github.com/torvalds/linux/commit/a2cdd07488e666aa93a49a3fc9c9b1299e27ef3c · Patch
• https://cve.org/CVERecord?id=CVE-2019-19068 · Security Note
• https://ubuntu.com/security/notices/USN-4302-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-19068 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15221 · Vendor Advisory
• https://usn.ubuntu.com/4302-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15220 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19059 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19043 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15217 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T · Vendor Advisory
• https://usn.ubuntu.com/4300-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19058 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4286-1 · Vendor Advisory