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Cisco Bug: CSCur25858 - Cisco IOS XR Software Malformed SNMP Packet DoS Vulnerability

Last Modified

Jul 31, 2018

Products (24)

  • Cisco Carrier Routing System
  • Cisco CRS-X 8-Slot Single-Shelf System
  • Cisco CRS-1 Line Card Chassis (Dual)
  • Cisco CRS-1 16-Slot Line Card Chassis
  • Cisco CRS-X Multishelf System
  • Cisco CRS-1 Line Card Chassis (Multi)
  • Cisco CRS-3 Multishelf System
  • Cisco ASR 9922 Router
  • Cisco CRS-1 4-Slot Single-Shelf System
  • Cisco IOS XR Software
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Known Affected Releases

5.2.1.BASE

Description (partial)

Symptom:
A vulnerability in SNMP processing of Cisco IOS XR could allow an authenticated, remote attacker to cause a reload of the SNMPd process on the affected 
device.

The vulnerability is due to improper parsing of a malformed SNMP packet. An attacker could exploit this vulnerability by sending a malformed SNMP packet to be processed by an affected device. An exploit could allow the attacker to cause a reload of the SNMPd process on the affected device.

Conditions:
SNMPd configured.
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Bug Details Include

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