description: A vulnerability in the IKEv1 fragmentation code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a heap overflow, resulting in an affected device reloading.
This vulnerability exists because crafted, fragmented IKEv1 packets are not properly reassembled. An attacker could exploit this vulnerability by sending crafted UDP packets to an affected system. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Note: Only traffic that is directed to the affected system can be used to exploit this vulnerability. This vulnerability can be triggered by IPv4 and IPv6 traffic.
problem types: Stack-based Buffer Overflow
affected:
{
vendor: Cisco
product: IOS
versions:
version: 15.1(2)SG8, status: affected
version: 15.2(4)M11, status: affected
version: 15.1(2)SY8, status: affected
version: 15.1(2)SY9, status: affected
version: 15.1(2)SY10, status: affected
version: 15.1(2)SY11, status: affected
version: 15.1(2)SY12, status: affected
version: 15.1(2)SY13, status: affected
version: 15.1(2)SY14, status: affected
version: 15.1(2)SY15, status: affected
version: 15.1(2)SY16, status: affected
version: 15.3(3)S8, status: affected
version: 15.3(3)S9, status: affected
version: 15.3(3)S10, status: affected
version: 15.3(3)S8a, status: affected
version: 15.2(4)E2, status: affected
version: 15.2(3)E4, status: affected
version: 15.2(5)E, status: affected
version: 15.2(4)E3, status: affected
version: 15.2(5b)E, status: affected
version: 15.2(3)E5, status: affected
version: 15.2(4)E4, status: affected
version: 15.2(4)E5, status: affected
version: 15.2(4)E5a, status: affected
version: 15.2(4)E6, status: affected
version: 15.2(4)E7, status: affected
version: 15.2(4)E8, status: affected
version: 15.2(4)E9, status: affected
version: 15.2(4)E10, status: affected
version: 15.2(4)E10a, status: affected
version: 15.2(4)E10d, status: affected
version: 15.4(3)S6, status: affected
version: 15.4(3)S7, status: affected
version: 15.4(3)S6a, status: affected
version: 15.4(3)S8, status: affected
version: 15.4(3)S9, status: affected
version: 15.4(3)S10, status: affected
version: 15.3(3)M8, status: affected
version: 15.3(3)M9, status: affected
version: 15.3(3)M10, status: affected
version: 15.3(3)M8a, status: affected
version: 15.2(1)SY3, status: affected
version: 15.2(1)SY4, status: affected
version: 15.2(1)SY5, status: affected
version: 15.2(1)SY6, status: affected
version: 15.2(1)SY7, status: affected
version: 15.2(1)SY8, status: affected
version: 15.5(3)S3, status: affected
version: 15.5(1)S4, status: affected
version: 15.5(2)S4, status: affected
version: 15.5(3)S4, status: affected
version: 15.5(3)S5, status: affected
version: 15.5(3)S6, status: affected
version: 15.5(3)S6a, status: affected
version: 15.5(3)S7, status: affected
version: 15.5(3)S6b, status: affected
version: 15.5(3)S8, status: affected
version: 15.5(3)S9, status: affected
version: 15.5(3)S10, status: affected
version: 15.5(3)S9a, status: affected
version: 15.5(2)T4, status: affected
version: 15.2(5)EA, status: affected
version: 15.2(4)EA4, status: affected
version: 15.2(4)EA5, status: affected
version: 15.2(4)EA6, status: affected
version: 15.2(4)EA7, status: affected
version: 15.2(4)EA8, status: affected
version: 15.2(4)EA9, status: affected
version: 15.2(4)EA9a, status: affected
version: 15.5(3)M3, status: affected
version: 15.5(3)M4, status: affected
version: 15.5(3)M4a, status: affected
version: 15.5(3)M5, status: affected
version: 15.5(3)M6, status: affected
version: 15.5(3)M7, status: affected
version: 15.5(3)M6a, status: affected
version: 15.5(3)M8, status: affected
version: 15.5(3)M9, status: affected
version: 15.5(3)M10, status: affected
version: 15.3(1)SY1, status: affected
version: 15.3(1)SY2, status: affected
version: 15.2(4)EC1, status: affected
version: 15.2(4)EC2, status: affected
version: 15.4(1)SY, status: affected
version: 15.4(1)SY1, status: affected
version: 15.4(1)SY2, status: affected
version: 15.4(1)SY3, status: affected
version: 15.4(1)SY4, status: affected
version: 15.5(1)SY, status: affected
version: 15.5(1)SY1, status: affected
version: 15.5(1)SY2, status: affected
version: 15.5(1)SY3, status: affected
version: 15.5(1)SY4, status: affected
version: 15.5(1)SY5, status: affected
version: 15.5(1)SY6, status: affected
version: 15.5(1)SY7, status: affected
version: 15.5(1)SY8, status: affected
version: 15.5(1)SY9, status: affected
version: 15.5(1)SY10, status: affected
version: 15.5(1)SY11, status: affected
version: 15.7(3)M, status: affected
version: 15.7(3)M1, status: affected
version: 15.7(3)M0a, status: affected
version: 15.7(3)M3, status: affected
version: 15.7(3)M2, status: affected
version: 15.7(3)M4, status: affected
version: 15.7(3)M5, status: affected
version: 15.7(3)M4a, status: affected
version: 15.7(3)M4b, status: affected
version: 15.7(3)M6, status: affected
version: 15.7(3)M7, status: affected
version: 15.7(3)M8, status: affected
version: 15.7(3)M9, status: affected
version: 15.8(3)M, status: affected
version: 15.8(3)M1, status: affected
version: 15.8(3)M0a, status: affected
version: 15.8(3)M0b, status: affected
version: 15.8(3)M2, status: affected
version: 15.8(3)M1a, status: affected
version: 15.8(3)M3, status: affected
version: 15.8(3)M2a, status: affected
version: 15.8(3)M4, status: affected
version: 15.8(3)M3a, status: affected
version: 15.8(3)M3b, status: affected
version: 15.8(3)M5, status: affected
version: 15.8(3)M6, status: affected
version: 15.8(3)M7, status: affected
version: 15.8(3)M8, status: affected
version: 15.8(3)M9, status: affected
version: 15.8(3)M10, status: affected
version: 15.9(3)M, status: affected
version: 15.9(3)M1, status: affected
version: 15.9(3)M0a, status: affected
version: 15.9(3)M2, status: affected
version: 15.9(3)M3, status: affected
version: 15.9(3)M2a, status: affected
version: 15.9(3)M3a, status: affected
version: 15.9(3)M4, status: affected
version: 15.9(3)M3b, status: affected
version: 15.9(3)M5, status: affected
version: 15.9(3)M4a, status: affected
version: 15.9(3)M6, status: affected
version: 15.9(3)M7, status: affected
version: 15.9(3)M6a, status: affected
version: 15.9(3)M6b, status: affected
version: 15.9(3)M7a, status: affected
version: 15.3(3)JPI11, status: affected
}
{
vendor: Cisco
product: Cisco IOS XE Software
versions:
version: 3.4.8SG, status: affected
version: 3.10.8S, status: affected
version: 3.10.8aS, status: affected
version: 3.10.9S, status: affected
version: 3.10.10S, status: affected
version: 3.13.6S, status: affected
version: 3.13.7S, status: affected
version: 3.13.6aS, status: affected
version: 3.13.7aS, status: affected
version: 3.13.8S, status: affected
version: 3.13.9S, status: affected
version: 3.13.10S, status: affected
version: 3.14.4S, status: affected
version: 3.15.4S, status: affected
version: 3.7.4E, status: affected
version: 3.7.5E, status: affected
version: 3.16.3S, status: affected
version: 3.16.3aS, status: affected
version: 3.16.4S, status: affected
version: 3.16.4aS, status: affected
version: 3.16.4bS, status: affected
version: 3.16.5S, status: affected
version: 3.16.4dS, status: affected
version: 3.16.6S, status: affected
version: 3.16.7S, status: affected
version: 3.16.6bS, status: affected
version: 3.16.7aS, status: affected
version: 3.16.7bS, status: affected
version: 3.16.8S, status: affected
version: 3.16.9S, status: affected
version: 3.16.10S, status: affected
version: 16.1.3, status: affected
version: 16.2.1, status: affected
version: 16.2.2, status: affected
version: 3.8.2E, status: affected
version: 3.8.3E, status: affected
version: 3.8.4E, status: affected
version: 3.8.5E, status: affected
version: 3.8.5aE, status: affected
version: 3.8.6E, status: affected
version: 3.8.7E, status: affected
version: 3.8.8E, status: affected
version: 3.8.9E, status: affected
version: 3.8.10E, status: affected
version: 16.3.1, status: affected
version: 16.3.2, status: affected
version: 16.3.3, status: affected
version: 16.3.1a, status: affected
version: 16.3.4, status: affected
version: 16.3.5, status: affected
version: 16.3.5b, status: affected
version: 16.3.6, status: affected
version: 16.3.7, status: affected
version: 16.3.8, status: affected
version: 16.3.9, status: affected
version: 16.3.10, status: affected
version: 16.3.11, status: affected
version: 16.4.1, status: affected
version: 16.4.2, status: affected
version: 16.4.3, status: affected
version: 16.5.1, status: affected
version: 16.5.1a, status: affected
version: 16.5.1b, status: affected
version: 16.5.2, status: affected
version: 16.5.3, status: affected
version: 3.9.0E, status: affected
version: 16.6.1, status: affected
version: 16.6.2, status: affected
version: 16.6.3, status: affected
version: 16.6.4, status: affected
version: 16.6.5, status: affected
version: 16.6.4a, status: affected
version: 16.6.5a, status: affected
version: 16.6.6, status: affected
version: 16.6.7, status: affected
version: 16.6.8, status: affected
version: 16.6.9, status: affected
version: 16.6.10, status: affected
version: 16.7.1, status: affected
version: 16.7.1a, status: affected
version: 16.7.1b, status: affected
version: 16.7.2, status: affected
version: 16.7.3, status: affected
version: 16.7.4, status: affected
version: 16.8.1, status: affected
version: 16.8.1a, status: affected
version: 16.8.1b, status: affected
version: 16.8.1s, status: affected
version: 16.8.1c, status: affected
version: 16.8.1d, status: affected
version: 16.8.2, status: affected
version: 16.8.1e, status: affected
version: 16.8.3, status: affected
version: 16.9.1, status: affected
version: 16.9.2, status: affected
version: 16.9.1a, status: affected
version: 16.9.1b, status: affected
version: 16.9.1s, status: affected
version: 16.9.3, status: affected
version: 16.9.4, status: affected
version: 16.9.3a, status: affected
version: 16.9.5, status: affected
version: 16.9.5f, status: affected
version: 16.9.6, status: affected
version: 16.9.7, status: affected
version: 16.9.8, status: affected
version: 16.10.1, status: affected
version: 16.10.1a, status: affected
version: 16.10.1b, status: affected
version: 16.10.1s, status: affected
version: 16.10.1c, status: affected
version: 16.10.1e, status: affected
version: 16.10.1d, status: affected
version: 16.10.2, status: affected
version: 16.10.1f, status: affected
version: 16.10.1g, status: affected
version: 16.10.3, status: affected
version: 16.11.1, status: affected
version: 16.11.1a, status: affected
version: 16.11.1b, status: affected
version: 16.11.2, status: affected
version: 16.11.1s, status: affected
version: 16.12.1, status: affected
version: 16.12.1s, status: affected
version: 16.12.1a, status: affected
version: 16.12.1c, status: affected
version: 16.12.1w, status: affected
version: 16.12.2, status: affected
version: 16.12.1y, status: affected
version: 16.12.2a, status: affected
version: 16.12.3, status: affected
version: 16.12.8, status: affected
version: 16.12.2s, status: affected
version: 16.12.1x, status: affected
version: 16.12.1t, status: affected
version: 16.12.4, status: affected
version: 16.12.3s, status: affected
version: 16.12.3a, status: affected
version: 16.12.4a, status: affected
version: 16.12.5, status: affected
version: 16.12.6, status: affected
version: 16.12.1z1, status: affected
version: 16.12.5a, status: affected
version: 16.12.5b, status: affected
version: 16.12.1z2, status: affected
version: 16.12.6a, status: affected
version: 16.12.7, status: affected
version: 16.12.9, status: affected
version: 17.1.1, status: affected
version: 17.1.1a, status: affected
version: 17.1.1s, status: affected
version: 17.1.1t, status: affected
version: 17.1.3, status: affected
version: 17.2.1, status: affected
version: 17.2.1r, status: affected
version: 17.2.1a, status: affected
version: 17.2.1v, status: affected
version: 17.2.2, status: affected
version: 17.2.3, status: affected
version: 17.3.1, status: affected
version: 17.3.2, status: affected
version: 17.3.3, status: affected
version: 17.3.1a, status: affected
version: 17.3.1w, status: affected
version: 17.3.2a, status: affected
version: 17.3.1x, status: affected
version: 17.3.1z, status: affected
version: 17.3.4, status: affected
version: 17.3.5, status: affected
version: 17.3.4a, status: affected
version: 17.3.6, status: affected
version: 17.3.4b, status: affected
version: 17.3.4c, status: affected
version: 17.3.5a, status: affected
version: 17.3.5b, status: affected
version: 17.3.7, status: affected
version: 17.4.1, status: affected
version: 17.4.2, status: affected
version: 17.4.1a, status: affected
version: 17.4.1b, status: affected
version: 17.4.2a, status: affected
version: 17.5.1, status: affected
version: 17.5.1a, status: affected
version: 17.6.1, status: affected
version: 17.6.2, status: affected
version: 17.6.1w, status: affected
version: 17.6.1a, status: affected
version: 17.6.1x, status: affected
version: 17.6.3, status: affected
version: 17.6.1y, status: affected
version: 17.6.1z, status: affected
version: 17.6.3a, status: affected
version: 17.6.4, status: affected
version: 17.6.1z1, status: affected
version: 17.6.5, status: affected
version: 17.6.5a, status: affected
version: 17.7.1, status: affected
version: 17.7.1a, status: affected
version: 17.7.1b, status: affected
version: 17.7.2, status: affected
version: 17.10.1, status: affected
version: 17.10.1a, status: affected
version: 17.10.1b, status: affected
version: 17.8.1, status: affected
version: 17.8.1a, status: affected
version: 17.9.1, status: affected
version: 17.9.1w, status: affected
version: 17.9.2, status: affected
version: 17.9.1a, status: affected
version: 17.9.1x, status: affected
version: 17.9.1y, status: affected
version: 17.9.3, status: affected
version: 17.9.2a, status: affected
version: 17.9.1x1, status: affected
version: 17.9.3a, status: affected
version: 17.11.1, status: affected
version: 17.11.1a, status: affected
version: 17.11.99SW, status: affected
}
metrics:
format: cvssV3_1
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
baseScore: 6.8
baseSeverity: MEDIUM
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
]
exploits: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.