Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, and 12.4(24)T1; and IOS XE 2.3 through 2.3.1t and 2.4 through 2.4.0; when RFC4893 BGP routing is enabled, allows remote attackers to cause a denial of service (memory corruption and device reload) by using an RFC4271 peer to send an update with a long series of AS numbers, aka Bug ID CSCsy86021.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios | Cisco | 12.0(32)s12 (including) | 12.0(32)s12 (including) |
| Ios | Cisco | 12.0(32)s13 (including) | 12.0(32)s13 (including) |
| Ios | Cisco | 12.0(32)sy8 (including) | 12.0(32)sy8 (including) |
| Ios | Cisco | 12.0(32)sy9 (including) | 12.0(32)sy9 (including) |
| Ios | Cisco | 12.0(33)s3 (including) | 12.0(33)s3 (including) |
| Ios | Cisco | 12.0(33)s4 (including) | 12.0(33)s4 (including) |
| Ios | Cisco | 12.2(33)sxi1 (including) | 12.2(33)sxi1 (including) |
| Ios | Cisco | 12.2(33)sxi2 (including) | 12.2(33)sxi2 (including) |
| Ios | Cisco | 12.2xnc (including) | 12.2xnc (including) |
| Ios | Cisco | 12.2xnd (including) | 12.2xnd (including) |
| Ios | Cisco | 12.4(24)t1 (including) | 12.4(24)t1 (including) |
| Ios_xe | Cisco | 2.3 (including) | 2.3 (including) |
| Ios_xe | Cisco | 2.3.1t (including) | 2.3.1t (including) |
| Ios_xe | Cisco | 2.4 (including) | 2.4 (including) |
| Ios_xe | Cisco | 2.4.0 (including) | 2.4.0 (including) |