SB2018010208 - Denial of service in Linux Kernel
Published: January 2, 2018 Updated: October 22, 2018
Security Bulletin ID
SB2018010208
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Type confusion (CVE-ID: CVE-2018-18386)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to a type confusion condition in the drivers/tty/n_tty.csource code file. A local attacker can deny use of any other pseudoterminal devices on a targeted system when the EXTPROC and ICANON flags become confused in the TIOCINQ command.
Remediation
Install update from vendor's website.