Input validation error in rsyslog - CVE-2018-16881
Published: February 14, 2019
Vulnerability identifier: #VU17698
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-16881
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: rsyslog.com
Affected software:
rsyslog
rsyslog
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the imptcp module due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted message to the imptcp socket that submits malicious input and cause the affected software to crash, resulting in a DoS condition.
How to mitigate CVE-2018-16881
Update to version 8.27.