SB2020120854 - Race condition in Linux kernel F5 Traffix SDC
Published: December 8, 2020 Updated: December 17, 2020
Security Bulletin ID
SB2020120854
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2017-10661)
The vulnerability allows a local attacker to gain elevated privileges or cause DoS condition on the target system.The weakness exists due to race condition in fs/timerfd.c in the Linux kernel. A local attacker can use simultaneous file-descriptor operations, leverage improper might_cancel queueing, trigger list corruption or use-after-free and cause the service to crash or execute arbitrary code with root privileges.
Remediation
Install update from vendor's website.