PT-2019-3980 · Linux+7 · Linux Kernel+7

Published 2019-10-05 · Updated 2024-06-15 · CVE-2019-18808

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 through 5.3.9

Description A memory leak in the ccp run sha cmd() function in the Linux kernel allows attackers to cause a denial of service due to memory consumption. This issue can be exploited by a remote attacker to disrupt service.

Recommendations For Linux kernel versions through 5.3.9, update to a version later than 5.3.9 to resolve the issue. As a temporary workaround, consider restricting access to the ccp run sha cmd() function until a patch is available.

Fix

DoS

Memory Leak

Resource Exhaustion

Weakness Enumeration

CWE-401

CWE-400

Related Identifiers

ALSA-2020:4431

ALT-PU-2019-3113

ALT-PU-2019-3136

ALT-PU-2019-3184

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:2019-04511

CESA-2020_4060

CESA-2020_4431

CESA-2020_4609

CVE-2019-18808

OPENSUSE-SU-2020:0336-1

OPENSUSE-SU-2020_0336-1

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

RHSA-2020:2854

RHSA-2020:4060

RHSA-2020:4062

RHSA-2020:4431

RHSA-2020:4609

RHSA-2020_4060

RHSA-2020_4062

RHSA-2020_4431

RHSA-2020_4609

SUSE-SU-2019:3381-1

SUSE-SU-2020:0093-1

SUSE-SU-2020:0511-1

SUSE-SU-2020:0559-1

SUSE-SU-2020:0560-1

SUSE-SU-2020:0580-1

SUSE-SU-2020:0584-1

SUSE-SU-2020:0599-1

SUSE-SU-2020:0613-1

USN-4525-1

USN-4526-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Linux Kernel

Red Hat

Suse

Ubuntu

References · 933

• https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2 · Patch
• https://ubuntu.com/security/CVE-2020-14356 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4526-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-16166 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:0584-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-25212 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19054 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:13704-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-18808 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4525-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-4431.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-04511 · Security Note
• https://usn.ubuntu.com/4526-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-18808 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-18808 · Security Note