Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.
2011-09-06T16:55:10.837
2025-04-11T00:51:21.963
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | rsyslog | rsyslog | 4.6.0 | Yes |
| Application | rsyslog | rsyslog | 4.6.1 | Yes |
| Application | rsyslog | rsyslog | 4.6.2 | Yes |
| Application | rsyslog | rsyslog | 4.6.3 | Yes |
| Application | rsyslog | rsyslog | 4.6.4 | Yes |
| Application | rsyslog | rsyslog | 4.6.5 | Yes |
| Application | rsyslog | rsyslog | 4.6.6 | Yes |
| Application | rsyslog | rsyslog | 4.6.7 | Yes |
| Application | rsyslog | rsyslog | 5.2.0 | Yes |
| Application | rsyslog | rsyslog | 5.2.1 | Yes |
| Application | rsyslog | rsyslog | 5.2.2 | Yes |
| Application | rsyslog | rsyslog | 5.3.1 | Yes |
| Application | rsyslog | rsyslog | 5.3.2 | Yes |
| Application | rsyslog | rsyslog | 5.3.3 | Yes |
| Application | rsyslog | rsyslog | 5.3.4 | Yes |
| Application | rsyslog | rsyslog | 5.3.5 | Yes |
| Application | rsyslog | rsyslog | 5.3.6 | Yes |
| Application | rsyslog | rsyslog | 5.3.7 | Yes |
| Application | rsyslog | rsyslog | 5.4.0 | Yes |
| Application | rsyslog | rsyslog | 5.4.1 | Yes |
| Application | rsyslog | rsyslog | 5.4.2 | Yes |
| Application | rsyslog | rsyslog | 5.5.0 | Yes |
| Application | rsyslog | rsyslog | 5.5.1 | Yes |
| Application | rsyslog | rsyslog | 5.5.2 | Yes |
| Application | rsyslog | rsyslog | 5.5.3 | Yes |
| Application | rsyslog | rsyslog | 5.5.4 | Yes |
| Application | rsyslog | rsyslog | 5.5.5 | Yes |
| Application | rsyslog | rsyslog | 5.5.6 | Yes |
| Application | rsyslog | rsyslog | 5.5.7 | Yes |
| Application | rsyslog | rsyslog | 5.6.0 | Yes |
| Application | rsyslog | rsyslog | 5.6.1 | Yes |
| Application | rsyslog | rsyslog | 5.6.2 | Yes |
| Application | rsyslog | rsyslog | 5.6.3 | Yes |
| Application | rsyslog | rsyslog | 5.6.4 | Yes |
| Application | rsyslog | rsyslog | 5.6.5 | Yes |
| Application | rsyslog | rsyslog | 5.7.0 | Yes |
| Application | rsyslog | rsyslog | 5.7.1 | Yes |
| Application | rsyslog | rsyslog | 5.7.2 | Yes |
| Application | rsyslog | rsyslog | 5.7.3 | Yes |
| Application | rsyslog | rsyslog | 5.7.4 | Yes |
| Application | rsyslog | rsyslog | 5.7.5 | Yes |
| Application | rsyslog | rsyslog | 5.7.6 | Yes |
| Application | rsyslog | rsyslog | 5.7.7 | Yes |
| Application | rsyslog | rsyslog | 5.7.8 | Yes |
| Application | rsyslog | rsyslog | 5.7.9 | Yes |
| Application | rsyslog | rsyslog | 5.7.10 | Yes |
| Application | rsyslog | rsyslog | 5.8.0 | Yes |
| Application | rsyslog | rsyslog | 5.8.1 | Yes |
| Application | rsyslog | rsyslog | 5.8.2 | Yes |
| Application | rsyslog | rsyslog | 5.8.3 | Yes |
| Application | rsyslog | rsyslog | 5.8.4 | Yes |