| Package | Affected versions | Patched versions |
|---|---|---|
| rsyslog | = 3.12.1= 3.20.0= 4.1.0= 4.1.1 |
imudp in rsyslog 4.x before 4.1.2, 3.21 before 3.21.9 beta, and 3.20 before 3.20.2 generates a message even when it is sent by an unauthorized sender, which allows remote attackers to cause a denial of service (disk consumption) via a large number of spurious messages.
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