SB2018030905 - Denial of service in FreeBSD
Published: March 9, 2018
Security Bulletin ID
SB2018030905
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free error (CVE-ID: CVE-2018-6916)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to use-after-free memory error in the IPsec Authentication Header (AH). A remote attacker on a trusted host can send a specially crafted IP packet, trigger memory corruption and cause kernel panic.
Remediation
Install update from vendor's website.