Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote attackers to cause a denial of service via a series of failed telnet authentication attempts.
| Software | From | Fixed in |
|---|---|---|
| cisco / catos | 4.5(2) | 4.5(2).x |
| cisco / catos | 4.5(3) | 4.5(3).x |
| cisco / catos | 4.5(4) | 4.5(4).x |
| cisco / catos | 4.5(5) | 4.5(5).x |
| cisco / catos | 4.5(6) | 4.5(6).x |
| cisco / catos | 4.5(7) | 4.5(7).x |
| cisco / catos | 4.5(8) | 4.5(8).x |
| cisco / catos | 4.5(9) | 4.5(9).x |
| cisco / catos | 5.1 | 5.1.x |
| cisco / catos | 5.1(1) | 5.1(1).x |
| cisco / catos | 5.1(1a) | 5.1(1a).x |
| cisco / catos | 5.1(2a) | 5.1(2a).x |
| cisco / catos | 5.2 | 5.2.x |
| cisco / catos | 5.2(1) | 5.2(1).x |
| cisco / catos | 5.2(1a) | 5.2(1a).x |
| cisco / catos | 5.2(2) | 5.2(2).x |
| cisco / catos | 5.2(3) | 5.2(3).x |
| cisco / catos | 5.2(4) | 5.2(4).x |
| cisco / catos | 5.2(5) | 5.2(5).x |
| cisco / catos | 5.2(6) | 5.2(6).x |
| cisco / catos | 5.2(7) | 5.2(7).x |
| cisco / catos | 5.3(1)csx | 5.3(1)csx.x |
| cisco / catos | 5.3(1a)csx | 5.3(1a)csx.x |
| cisco / catos | 5.3(2)csx | 5.3(2)csx.x |
| cisco / catos | 5.3(3)csx | 5.3(3)csx.x |
| cisco / catos | 5.3(4)csx | 5.3(4)csx.x |
| cisco / catos | 5.3(5)csx | 5.3(5)csx.x |
| cisco / catos | 5.3(5a)csx | 5.3(5a)csx.x |
| cisco / catos | 5.3(6)csx | 5.3(6)csx.x |
| cisco / catos | 5.4 | 5.4.x |
| cisco / catos | 5.4(1) | 5.4(1).x |
| cisco / catos | 5.4(2) | 5.4(2).x |
| cisco / catos | 5.4(3) | 5.4(3).x |
| cisco / catos | 5.4(4) | 5.4(4).x |
| cisco / catos | 5.5 | 5.5.x |
| cisco / catos | 5.5(1) | 5.5(1).x |
| cisco / catos | 5.5(2) | 5.5(2).x |
| cisco / catos | 5.5(3) | 5.5(3).x |
| cisco / catos | 5.5(4) | 5.5(4).x |
| cisco / catos | 5.5(4a) | 5.5(4a).x |