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Cisco Bug: CSCur27693 - "Process = RADIUS " Crashed with crafted Radius response

Last Modified

Mar 10, 2020

Products (16)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901-6CZ-FS-D Router
  • Cisco ASR 901S-4SG-F-D Router
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901S-2SG-F-D Router
  • Cisco ASR 901S-2SG-F-AH Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
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Known Affected Releases

15.5(3)S

Description (partial)

Symptom:Cisco IOS Software and Cisco IOS XE Software may crash when processing
crafted RADIUS Accept packets.
Conditions:Device is configured to support RADIUS over IPv6 feature.

For affected versions use Cisco Feature Navigator. Any image that
supports "Radius over IPv6" is affected.

Requires either compromise of the RADIUS server, or a MiTM attack.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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