A vulnerability in the DHCP code for the Zero Touch Provisioning feature of Cisco ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote malicious user to cause an affected device to reload. The vulnerability is due to a format string vulnerability when processing a crafted DHCP packet for Zero Touch Provisioning. An attacker could exploit this vulnerability by sending a specially crafted DHCP packet to an affected device. An exploit could allow the malicious user to cause the device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects Cisco ASR 920 Series Aggregation Services Routers that are running an affected release of Cisco IOS XE Software (3.13 up to and including 3.18) and are listening on the DHCP server port. By default, the devices do not listen on the DHCP server port. Cisco Bug IDs: CSCuy56385.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
cisco ios_xe 3.14.3s |
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cisco ios_xe 3.15.2s |
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cisco ios_xe 3.16.0cs |
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cisco ios_xe 3.18.0sp |
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cisco ios_xe 3.18.0s |
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cisco ios_xe 3.18.3vs |
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cisco ios_xe 3.18.1bsp |
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cisco ios_xe 3.13.6as |
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cisco ios_xe 3.18.1csp |
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cisco ios_xe 3.13.5as |
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cisco ios_xe 3.16.1as |
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cisco ios_xe 3.17.1as |
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cisco ios_xe 3.18.0as |
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cisco ios_xe 3.13.5s |
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cisco ios_xe 3.15.3s |
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cisco ios_xe 3.18.1s |
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cisco ios_xe 3.16.2bs |
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cisco ios_xe 3.18.2s |
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cisco ios_xe 3.17.2s |
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cisco ios_xe 3.13.4s |
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cisco ios_xe 3.16.2as |
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cisco ios_xe 3.17.1s |
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cisco ios_xe 3.16.2s |
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cisco ios_xe 3.13.6s |
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cisco ios_xe 3.15.4s |
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cisco ios_xe 3.16.0s |
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cisco ios_xe 3.16.1s |
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cisco ios_xe 3.17.0s |
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cisco ios_xe 3.18.1asp |
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cisco ios_xe 3.14.4s |
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cisco ios_xe 3.18.1sp |
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cisco ios_xe 3.16.3s |
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cisco ios_xe 3.16.3as |
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