SB2018081509 - Denial of service in FreeBSD
Published: August 15, 2018
Security Bulletin ID
SB2018081509
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) Resource exhaustion (CVE-ID: CVE-2018-6923)
CWE-ID: CWE-400 - Resource exhaustion
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 vulnerability exists due to an error when processing specially crafted input. A remote attacker can send a stream of specially crafted
fragments with a low packet rate, consume a large amount of CPU or all available mbuf clusters and cause the system to crash.
Remediation
Install update from vendor's website.