NULL pointer dereference in Linux kernel - CVE-2020-11609

Vulnerability identifier: #VU28221

CSH Severity: Low

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-11609

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the stv06xx subsystem in the "drivers/media/usb/gspca/stv06xx/stv06xx.c" and "drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c" files. A remote authenticated attacker can perform a denial of service (DoS) attack.

Linux kernel
Anolis OS
Slackware Linux
linux-4.4.227/kernel-modules
linux-4.4.227/kernel-huge
linux-4.4.227/kernel-generic
linux-4.4.227/kernel-headers
kernel-debug-modules
kernel-debug-devel
kernel-debug-modules-extra
kernel-devel
kernel-headers
kernel-modules
kernel-modules-extra
kernel-modules-internal
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
bpftool
kernel-debug-core
kernel-debug
kernel-core
kernel
python-perf

Install update from vendor's website.

Linux kernel - update to 5.6.1
linux-4.4.227/kernel-modules - update to 4.4.227
linux-4.4.227/kernel-huge - update to 4.4.227
linux-4.4.227/kernel-generic - update to 4.4.227
linux-4.4.227/kernel-headers - update to 4.4.227_smp
kernel-debug-modules - update to 4.19.91-26
kernel-debug-devel - update to 4.19.91-26
kernel-debug-modules-extra - update to 4.19.91-26
kernel-devel - update to 4.19.91-26
kernel-headers - update to 4.19.91-26
kernel-modules - update to 4.19.91-26
kernel-modules-extra - update to 4.19.91-26
kernel-modules-internal - update to 4.19.91-26
kernel-tools - update to 4.19.91-26
kernel-tools-libs - update to 4.19.91-26
kernel-tools-libs-devel - update to 4.19.91-26
perf - update to 4.19.91-26
python3-perf - update to 4.19.91-26
bpftool - update to 4.19.91-26
kernel-debug-core - update to 4.19.91-26
kernel-debug - update to 4.19.91-26
kernel-core - update to 4.19.91-26
kernel - update to 4.19.91-26
python-perf - update to 4.19.91-26

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.1
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=485b06aadb933190f4bc44e006076bc27a23f205
• https://github.com/torvalds/linux/commit/485b06aadb933190f4bc44e006076bc27a23f205
• https://security.netapp.com/advisory/ntap-20200430-0004/
• https://usn.ubuntu.com/4345-1/
• https://usn.ubuntu.com/4364-1/
• https://usn.ubuntu.com/4368-1/

• Multiple vulnerabilities in Linux kernel
• Anolis OS update for kernel(ANCK)4.19
• Anolis OS update for kernel
• Slackware Linux update for kernel