PT-2019-5425 · Linux+4 · Linux Kernel+4

Chuhong Yuan · Published 2019-12-13 · Updated 2022-04-28 · CVE-2019-20810

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 5.6

Description The issue is related to the go7007 snd init function in the Linux kernel, which does not properly free resources in case of failure, leading to a memory leak. This can potentially allow an attacker to cause a denial of service.

Recommendations For Linux kernel versions prior to 5.6, update to version 5.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the affected function to minimize the risk of exploitation.

Fix

Memory Leak

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-401

CWE-772

Related Identifiers

ALT-PU-2020-1638

ALT-PU-2020-1646

ALT-PU-2020-1761

ALT-PU-2020-1917

ALT-PU-2020-2153

ALT-PU-2020-2164

ALT-PU-2021-1621

ALT-PU-2021-1656

ALT-PU-2021-1739

ALT-PU-2021-1862

ALT-PU-2021-1866

ALT-PU-2021-1870

BDU:2020-03027

CVE-2019-20810

DLA-2323-1

OPENSUSE-SU-2020:0935-1

OPENSUSE-SU-2020:1153-1

OPENSUSE-SU-2020_0935-1

OPENSUSE-SU-2020_1153-1

OPENSUSE-SU-2021:0242-1

OPENSUSE-SU-2021_0242-1

SUSE-SU-2020:1663-1

SUSE-SU-2020:1693-1

SUSE-SU-2020:1699-1

SUSE-SU-2020:2027-1

SUSE-SU-2020:2103-1

SUSE-SU-2020:2105-1

SUSE-SU-2020:2107-1

SUSE-SU-2020:2121-1

SUSE-SU-2020:2134-1

SUSE-SU-2020:2152-1

SUSE-SU-2020:2156-1

SUSE-SU-2020:2478-1

SUSE-SU-2020:2487-1

SUSE-SU-2020_1663-1

SUSE-SU-2020_1693-1

SUSE-SU-2020_1699-1

SUSE-SU-2020_2103-1

USN-4427-1

USN-4439-1

USN-4440-1

USN-4483-1

USN-4485-1

Affected Products

Alt Linux

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 1287

• https://usn.ubuntu.com/4485-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4483-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0242-1 · Vendor Advisory
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-24394 · Vendor Advisory
• https://usn.ubuntu.com/4483-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4427-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-10768 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-10732 · Vendor Advisory
• https://usn.ubuntu.com/4440-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1693-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14356 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1153-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-20810 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2020:0935-1 · Vendor Advisory