SB2018090630 - NULL pointer dereference in rutantan zephyr
Published: September 6, 2018 Updated: August 8, 2020
Security Bulletin ID
SB2018090630
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2018-1000800)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
zephyr-rtos version 1.12.0 contains a NULL base pointer reference vulnerability in sys_ring_buf_put(), sys_ring_buf_get() that can result in CPU Page Fault (error code 0x00000010). This attack appear to be exploitable via a malicious application call the vulnerable kernel APIs (system sys_ring_buf_get() and sys_ring_buf_put).
Remediation
Install update from vendor's website.