A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881
https://access.redhat.com/errata/RHSA-2019:2110
https://access.redhat.com/errata/RHSA-2019:2439
https://access.redhat.com/errata/RHSA-2019:2437
https://access.redhat.com/errata/RHBA-2019:2501
https://lists.debian.org/debian-lts-announce/2022/05/msg00028.html
Source: MITRE
Published: 2019-01-25
Updated: 2022-10-06
Type: CWE-190
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH