CVE-2021-1424
Description
A vulnerability in the ipsecmgr process of Cisco ASR 5000 Series Software (StarOS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to insufficient validation of incoming Internet Key Exchange Version 2 (IKEv2) packets. An attacker could exploit this vulnerability by sending specifically malformed IKEv2 packets to an affected device. A successful exploit could allow the attacker to cause the ipsecmgr process to restart, which would disrupt ongoing IKE negotiations and result in a temporary DoS condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Cisco ASR 5000 Series Software | 21.15.7, 21.13.10, 21.14.1, 21.11.5, 21.13.8, 21.14.5, 21.12.8, 21.13.11, 21.11.8, 21.12.9, 21.15.5, 21.11.7, 21.13.5, 21.12.0, 21.15.2, 21.11.6, 21.14.2, 21.12.3, 21.15.0, 21.11.2, 21.13.7, 21.12.4, 21.12.12, 21.13.4, 21.12.5, 21.14.a0, 21.11.9, 21.14.0, 21.11.4, 21.12.7, 21.14.3, 21.12.2, 21.14.10, 21.15.4, 21.14.6, 21.15.3, 21.13.13, 21.12.11, 21.12.10, 21.14.9, 21.11.1, 21.14.7, 21.11.3, 21.13.3, 21.13.2, 21.13.14, 21.12.1, 21.13.6, 21.13.12, 21.15.8, 21.13.1, 21.15.1, 21.15.6, 21.13.9, 21.14.4, 21.13.0, 21.12.6, 21.14.8, 21.11.0, 21.15.15, 21.14.11, 21.17.2, 21.15.13, 21.15.12, 21.14.b15, 21.17.0, 21.15.10, 21.13.16, 21.14.12, 21.15.20, 21.11.10, 21.15.18, 21.15.14, 21.13.15, 21.15.21, 21.15.17, 21.17.1, 21.14.b14, 21.12.13, 21.12.14, 21.15.19, 21.15.11, 21.15.22, 21.17.3, 21.14.b13, 21.15.16, 21.14.b12, 21.16.2, 21.14.16, 21.14.b17, 21.15.24, 21.16.c9, 21.15.25, 21.15.26, 21.16.d0, 21.17.4, 21.15.27, 21.13.17, 21.18.0, 21.15.28, 21.14.17, 21.16.d1, 21.18.1, 21.16.3, 21.14.b18, 21.16.c10, 21.11.11, 21.15.29, 21.15.30, 21.13.18, 21.12.16, 21.17.5, 21.16.c11, 21.15.32, 21.13.19, 21.15.33, 21.11.12, 21.19.0, 21.18.2, 21.14.19, 21.19.1, 21.17.6, 21.11.13, 21.12.17, 21.15.36, 21.18.3, 21.14.b19, 21.19.2, 21.15.37, 21.17.7, 21.14.20, 21.16.c12, 21.18.4, 21.19.3, 21.13.20, 21.15.40, 21.14.b20, 21.16.4, 21.18.5, 21.14.b21, 21.16.c13, 21.11.14, 21.12.18, 21.20.SV1, 21.20.0, 21.15.41, 21.20.SV2, 21.17.8, 21.20.1, 21.20.SV3, 21.16.5, 21.20.SV5, 21.15.43, 21.19.4, 21.18.6, 21.15.45, 21.20.2, 21.16.c14, 21.17.9, 21.11.15, 21.14.22, 21.20.3, 21.15.46, 21.18.7, 21.19.n3, 21.15.47, 21.15.48, 21.19.5, 21.17.10, 21.18.8, 21.16.6, 21.12.19, 21.13.21, 21.20.4, 21.18.9, 21.19.n4, 21.17.11, 21.18.11, 21.19.6, 21.16.c15, 21.16.7, 21.17.12, 21.21.0, 21.17.13, 21.11.16, 21.12.20, 21.18.12, 21.12.21, 21.14.b22, 21.19.7, 21.20.6, 21.18.13, 21.19.n5, 21.18.14, 21.20.7, 21.11.17, 21.17.14, 21.19.8, 21.20.8, 21.19.9 | — |
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