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Cisco Bug: CSCsm45390 - DHCP relay security vulnerability

Last Modified

Jul 15, 2021

Products (1)

  • Cisco Catalyst 4000 Software

Known Affected Releases

12.2(33)SRB4 12.2(33)SXH 12.2(44)SE 12.2SRC

Description (partial)


An IOS software crash may occur when receiving a specific malformed DHCP packet. 

An IOS device configured for DHCP Server and receives a DHCP-request from a DHCP relay device. A specific malformed option in the packet packet may induce a software traceback or crash. The specific packet will not occur without manual modification.

Related Community Discussions

Can I grab the first fix info to -all calls
Can I grab the first fix info from the itself I see all the attributes like advisory_id and details on it except for first fixed version, can I get this value added too.
Latest activity: Jul 03, 2018
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