SB2018040415 - Multiple vulnerabilities in FreeBSD
Published: April 4, 2018
Security Bulletin ID
SB2018040415
Severity
Medium
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Infinite loop (CVE-ID: CVE-2018-6918)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists due to the length field of the option header does not count the size of the option header itself and pointer/offset mistakes in the handling of IPv4 options. A remote attacker can trigger infinite loop and cause the service to crash.
2) Integer overflow (CVE-ID: CVE-2018-6917)
The vulnerability allows a remote attacker to gain elevated privileges on the target system.The weakness exists due to insufficient validation of user-provided font parameters. A remote attacker can trigger integer overflow and gain root privileges.
Remediation
Install update from vendor's website.