SB2022051214 - Ubuntu update for rsyslog
Published: May 12, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2018-16881)
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.
2) Buffer overflow (CVE-ID: CVE-2019-17041)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in "contrib/pmaixforwardedfrom/pmaixforwardedfrom.c" due to a boundary error in the parser for AIX log messages. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Buffer overflow (CVE-ID: CVE-2019-17042)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in "contrib/pmcisconames/pmcisconames.c" due to a boundary error in the parser for Cisco log messages. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.