Vulnerability Monitor

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CVE-2020-3203

A vulnerability in the locally significant certificate (LSC) provisioning feature of Cisco Catalyst 9800 Series Wireless Controllers that are running Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak that could lead to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain public key infrastructure (PKI) packets. An attacker could exploit this vulnerability by sending crafted Secure Sockets Layer (SSL) packets to an affected device. A successful exploit could cause an affected device to continuously consume memory, which could result in a memory allocation failure that leads to a crash and causes a DoS condition.

Published

2020-06-03T18:15:17.853

Last Modified

2024-11-21T05:30:32.917

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-401
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 16.1.1 Yes
Operating System cisco ios_xe 16.1.2 Yes
Operating System cisco ios_xe 16.1.3 Yes
Operating System cisco ios_xe 16.2.1 Yes
Operating System cisco ios_xe 16.2.2 Yes
Operating System cisco ios_xe 16.3.1 Yes
Operating System cisco ios_xe 16.3.1a Yes
Operating System cisco ios_xe 16.3.2 Yes
Operating System cisco ios_xe 16.3.3 Yes
Operating System cisco ios_xe 16.3.4 Yes
Operating System cisco ios_xe 16.3.5 Yes
Operating System cisco ios_xe 16.3.5b Yes
Operating System cisco ios_xe 16.3.6 Yes
Operating System cisco ios_xe 16.3.7 Yes
Operating System cisco ios_xe 16.3.8 Yes
Operating System cisco ios_xe 16.3.9 Yes
Operating System cisco ios_xe 16.4.1 Yes
Operating System cisco ios_xe 16.4.2 Yes
Operating System cisco ios_xe 16.4.3 Yes
Operating System cisco ios_xe 16.5.1 Yes
Operating System cisco ios_xe 16.5.1a Yes
Operating System cisco ios_xe 16.5.1b Yes
Operating System cisco ios_xe 16.5.2 Yes
Operating System cisco ios_xe 16.5.3 Yes
Operating System cisco ios_xe 16.7.1 Yes
Operating System cisco ios_xe 16.7.2 Yes
Operating System cisco ios_xe 16.7.3 Yes
Operating System cisco ios_xe 16.8.1 Yes
Operating System cisco ios_xe 16.8.1a Yes
Operating System cisco ios_xe 16.8.1b Yes
Operating System cisco ios_xe 16.8.1c Yes
Operating System cisco ios_xe 16.8.1s Yes
Operating System cisco ios_xe 16.8.2 Yes
Operating System cisco ios_xe 16.8.3 Yes
Operating System cisco ios_xe 16.10.1 Yes
Operating System cisco ios_xe 16.10.1a Yes
Operating System cisco ios_xe 16.10.1b Yes
Operating System cisco ios_xe 16.10.1e Yes
Operating System cisco ios_xe 16.10.1s Yes
Operating System cisco ios_xe 16.10.2 Yes
Operating System cisco ios_xe 16.10.3 Yes
Operating System cisco ios_xe 16.11.1 Yes
Operating System cisco ios_xe 16.11.1a Yes
Operating System cisco ios_xe 16.11.1b Yes
Operating System cisco ios_xe 16.11.1c Yes
Operating System cisco ios_xe 16.11.1s Yes
Operating System cisco ios_xe 16.12.1 Yes
Operating System cisco ios_xe 16.12.1a Yes
Operating System cisco ios_xe 16.12.1c Yes
Operating System cisco ios_xe 16.12.1s Yes
Operating System cisco ios_xe 16.12.2 Yes
Operating System cisco ios_xe 16.12.2a Yes
Operating System cisco ios_xe 16.12.4 Yes
Operating System cisco ios_xe 16.12.8 Yes
Hardware cisco catalyst_9800-40 - No
Hardware cisco catalyst_9800-80 - No
Hardware cisco catalyst_9800-cl - No
Hardware cisco catalyst_9800-l - No
Hardware cisco catalyst_9800-l-c - No
Hardware cisco catalyst_9800-l-f - No
References