CVE-2020-26070

A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when an affected device processes network traffic in software switching mode (punted). An attacker could exploit this vulnerability by sending specific streams of Layer 2 or Layer 3 protocol data units (PDUs) to an affected device. A successful exploit could cause the affected device to run out of buffer resources, which could make the device unable to process or forward traffic, resulting in a DoS condition. The device would need to be restarted to regain functionality.

• Cisco Asr 9000v

  HW
  Cisco
  v2

• Cisco Asr 9001

  HW
  Cisco
  all versions

• Cisco Asr 9006

  HW
  Cisco
  all versions

• Cisco Asr 9010

  HW
  Cisco
  all versions

• Cisco Asr 9901

  HW
  Cisco
  all versions

• Cisco Asr 9903

  HW
  Cisco
  all versions

• Cisco Asr 9904

  HW
  Cisco
  all versions

• Cisco Asr 9906

  HW
  Cisco
  all versions

• Cisco Asr 9910

  HW
  Cisco
  all versions

• Cisco Asr 9912

  HW
  Cisco
  all versions

• Cisco Asr 9922

  HW
  Cisco
  all versions

• Cisco IOS XR

  OS
  Cisco
  7.1.0 – 7.1.2 (excl.)< 6.7.2