CVE-2024-20312
Description
A vulnerability in the Intermediate System-to-Intermediate System (IS-IS) protocol of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation when parsing an ingress IS-IS packet. An attacker could exploit this vulnerability by sending a crafted IS-IS packet to an affected device after forming an adjacency. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2-adjacent to the affected device and have formed an adjacency.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios | 15.0\(1\)ex, 15.1\(1\)sy, 15.1\(1\)sy1, 15.1\(1\)sy2, 15.1\(1\)sy3, 15.1\(1\)sy4, 15.1\(1\)sy5, 15.1\(1\)sy6, 15.1\(2\)sg, 15.1\(2\)sg1, 15.1\(2\)sg2, 15.1\(2\)sg3, 15.1\(2\)sg4, 15.1\(2\)sg5, 15.1\(2\)sg6, 15.1\(2\)sg7, 15.1\(2\)sg8, 15.1\(2\)sy, 15.1\(2\)sy1, 15.1\(2\)sy2, 15.1\(2\)sy3, 15.1\(2\)sy4, 15.1\(2\)sy4a, 15.1\(2\)sy5, 15.1\(2\)sy6, 15.1\(2\)sy7, 15.1\(2\)sy8, 15.1\(2\)sy9, 15.1\(2\)sy10, 15.1\(2\)sy11, 15.1\(2\)sy12, 15.1\(2\)sy13, 15.1\(2\)sy14, 15.1\(2\)sy15, 15.1\(2\)sy16, 15.2\(1\)e, 15.2\(1\)e1, 15.2\(1\)e2, 15.2\(1\)e3, 15.2\(1\)ey, 15.2\(1\)s, 15.2\(1\)s1, 15.2\(1\)s2, 15.2\(1\)sy, 15.2\(1\)sy0a, 15.2\(1\)sy1, 15.2\(1\)sy1a, 15.2\(1\)sy2, 15.2\(1\)sy3, 15.2\(1\)sy4, 15.2\(1\)sy5, 15.2\(1\)sy6, 15.2\(1\)sy7, 15.2\(1\)sy8, 15.2\(2\)e, 15.2\(2\)e1, 15.2\(2\)e2, 15.2\(2\)e3, 15.2\(2\)e4, 15.2\(2\)e5, 15.2\(2\)e5a, 15.2\(2\)e5b, 15.2\(2\)e6, 15.2\(2\)e7, 15.2\(2\)e7b, 15.2\(2\)e8, 15.2\(2\)e9, 15.2\(2\)e10, 15.2\(2\)ea, 15.2\(2\)ea1, 15.2\(2\)ea2, 15.2\(2\)ea3, 15.2\(2\)eb, 15.2\(2\)eb1, 15.2\(2\)eb2, 15.2\(2\)s, 15.2\(2\)s0a, 15.2\(2\)s0c, 15.2\(2\)s1, 15.2\(2\)s2, 15.2\(2\)sy, 15.2\(2\)sy1, 15.2\(2\)sy2, 15.2\(2\)sy3, 15.2\(2a\)e2, 15.2\(3\)e, 15.2\(3\)e1, 15.2\(3\)e2, 15.2\(3\)e3, 15.2\(3\)e4, 15.2\(3\)e5, 15.2\(3\)ea, 15.2\(3\)gc, 15.2\(3\)gc1, 15.2\(3a\)e, 15.2\(4\)e, 15.2\(4\)e1, 15.2\(4\)e2, 15.2\(4\)e3, 15.2\(4\)e4, 15.2\(4\)e5, 15.2\(4\)e5a, 15.2\(4\)e6, 15.2\(4\)e7, 15.2\(4\)e8, 15.2\(4\)e9, 15.2\(4\)e10, 15.2\(4\)e10a, 15.2\(4\)e10d, 15.2\(4\)e10e, 15.2\(4\)ea, 15.2\(4\)ea1, 15.2\(4\)ea3, 15.2\(4\)ea4, 15.2\(4\)ea5, 15.2\(4\)ea6, 15.2\(4\)ea7, 15.2\(4\)ea8, 15.2\(4\)ea9, 15.2\(4\)ea9a, 15.2\(4\)ec1, 15.2\(4\)ec2, 15.2\(4\)gc, 15.2\(4\)gc1, 15.2\(4\)gc2, 15.2\(4\)gc3, 15.2\(4\)m, 15.2\(4\)m1, 15.2\(4\)m2, 15.2\(4\)m3, 15.2\(4\)m4, 15.2\(4\)m5, 15.2\(4\)m6, 15.2\(4\)m6a, 15.2\(4\)m7, 15.2\(4\)m8, 15.2\(4\)m9, 15.2\(4\)m10, 15.2\(4\)m11, 15.2\(4\)s, 15.2\(4\)s1, 15.2\(4\)s2, 15.2\(4\)s3, 15.2\(4\)s3a, 15.2\(4\)s4, 15.2\(4\)s4a, 15.2\(4\)s5, 15.2\(4\)s6, 15.2\(4\)s7, 15.2\(5\)e, 15.2\(5\)e1, 15.2\(5\)e2, 15.2\(5\)e2b, 15.2\(5\)e2c, 15.2\(5\)ea, 15.2\(5a\)e1, 15.2\(6\)e, 15.2\(6\)e0a, 15.2\(6\)e0c, 15.2\(6\)e1, 15.2\(6\)e2, 15.2\(6\)e2a, 15.2\(6\)e3, 15.2\(6\)eb, 15.2\(7\)e, 15.2\(7\)e0b, 15.2\(7\)e0s, 15.2\(7\)e1, 15.2\(7\)e1a, 15.2\(7\)e2, 15.2\(7\)e3, 15.2\(7\)e4, 15.2\(7\)e5, 15.2\(7\)e6, 15.2\(7\)e7, 15.2\(7\)e8, 15.2\(7\)e9, 15.2\(7a\)e0b, 15.2\(7b\)e0b, 15.2\(8\)e, 15.2\(8\)e1, 15.2\(8\)e2, 15.2\(8\)e3, 15.2\(8\)e4, 15.2\(8\)e5, 15.3\(1\)s, 15.3\(1\)s1, 15.3\(1\)s2, 15.3\(1\)sy, 15.3\(1\)sy1, 15.3\(1\)sy2, 15.3\(1\)t, 15.3\(1\)t1, 15.3\(1\)t2, 15.3\(1\)t3, 15.3\(1\)t4, 15.3\(2\)s, 15.3\(2\)s1, 15.3\(2\)s2, 15.3\(2\)t | — |
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