PT-2019-4398 · Linux+2 · Linux Kernel+2

Published 2019-09-27 · Updated 2021-05-28 · CVE-2019-19081

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.3.4

Description The issue is related to a memory leak in the nfp flower spawn vnic reprs() function in the Linux kernel. This memory leak can be exploited by attackers to cause a denial of service due to memory consumption. The exploitation of this issue can allow a remote attacker to cause a service disruption.

Recommendations For Linux kernel versions prior to 5.3.4, update to version 5.3.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the nfp flower spawn vnic reprs() function until a patch is available.

Fix

DoS

Memory Leak

Resource Exhaustion

Weakness Enumeration

CWE-401

CWE-400

Related Identifiers

ALT-PU-2019-2838

ALT-PU-2019-2845

ALT-PU-2019-2891

ALT-PU-2020-1198

ALT-PU-2020-1501

ALT-PU-2020-1714

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2020-00120

CVE-2019-19081

OPENSUSE-SU-2019:2675-1

OPENSUSE-SU-2019_2675-1

SUSE-SU-2019:3200-1

SUSE-SU-2019:3317-1

SUSE-SU-2019:3372-1

SUSE-SU-2020:0093-1

SUSE-SU-2020:0613-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 585

• https://github.com/torvalds/linux/commit/8ce39eb5a67aee25d9f05b40b673c95b23502e3e · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-19081 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2675-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00120 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:3200-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:0613-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:3317-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-19081 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:3372-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:0093-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-19081 · Security Note
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-19081 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-19081 · Vendor Advisory