PT-2020-2415 · Linux+3 · Linux Kernel+3

Published 2020-03-12 · Updated 2021-05-28 · CVE-2020-11609

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 5.6.1

Description The issue is related to the stv06xx subsystem in the Linux kernel, where the files drivers/media/usb/gspca/stv06xx/stv06xx.c and drivers/media/usb/gspca/stv06xx/stv06xx pb0100.c mishandle invalid descriptors. This can lead to a NULL pointer dereference, potentially allowing an attacker to cause a denial of service.

Recommendations For Linux kernel versions prior to 5.6.1, update to version 5.6.1 or later to resolve the issue. As a temporary workaround, consider disabling the stv06xx subsystem until a patch is available. Restrict access to the vulnerable files drivers/media/usb/gspca/stv06xx/stv06xx.c and drivers/media/usb/gspca/stv06xx/stv06xx pb0100.c to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2020-1671

ALT-PU-2020-1673

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:2020-02416

CVE-2020-11609

DLA-2241-1

DLA-2241-2

DLA-2242-1

DSA-4698-1

MGASA-2020-0183

MGASA-2020-0184

OPENSUSE-SU-2020:0801-1

OPENSUSE-SU-2020_0801-1

SUSE-SU-2020:1255-1

SUSE-SU-2020:1275-1

SUSE-SU-2020:1663-1

SUSE-SU-2020_1663-1

USN-4345-1

USN-4364-1

USN-4368-1

USN-4369-1

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 507

• https://github.com/torvalds/linux/commit/485b06aadb933190f4bc44e006076bc27a23f205 · Patch
• https://linux.oracle.com/errata/ELSA-2020-5691.html · Vendor Advisory
• https://usn.ubuntu.com/4364-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4369-1 · Vendor Advisory
• https://debian.org/security/2020/dsa-4698 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4368-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-11668 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-11669 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02416 · Security Note
• https://osv.dev/vulnerability/DSA-4698-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4368-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19768 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-11609 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11609 · Security Note