SB2020043033 - Multiple vulnerabilities in Linux kernel

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Main Vulnerability Database SB2020043033

SB2020043033 - Multiple vulnerabilities in Linux kernel

Published: April 30, 2020 Updated: May 25, 2020

Security Bulletin ID SB2020043033
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2020-11668)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the drivers/media/usb/gspca/xirlink_cit.c in Xirlink camera USB driver. A local user can pass specially crafted data to the driver and perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2020-11608)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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]


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 "drivers/media/usb/gspca/ov519.c" file in "ov511_mode_init_regs and ov518_mode_init_regs". A remote authenticated attacker can perform a denial of service (DoS) attack.


3) NULL pointer dereference (CVE-ID: CVE-2020-11609)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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]


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.


Remediation

Install update from vendor's website.

References