CVEvulnerability

CVE-2020-3203

8.6 HIGH Published 2020-06-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-06-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.0 ([email protected])
8.6 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-400, CWE-401

Description

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.

Affected configurations

• cisco ios xe 16.1.1 • cisco ios xe 16.1.2 • cisco ios xe 16.1.3 • cisco ios xe 16.2.1 • cisco ios xe 16.2.2 • cisco ios xe 16.3.1 • cisco ios xe 16.3.1a • cisco ios xe 16.3.2 • cisco ios xe 16.3.3 • cisco ios xe 16.3.4 • cisco ios xe 16.3.5 • cisco ios xe 16.3.5b • cisco ios xe 16.3.6 • cisco ios xe 16.3.7 • cisco ios xe 16.3.8 • cisco ios xe 16.3.9 • cisco ios xe 16.4.1 • cisco ios xe 16.4.2 • cisco ios xe 16.4.3 • cisco ios xe 16.5.1 • cisco ios xe 16.5.1a • cisco ios xe 16.5.1b • cisco ios xe 16.5.2 • cisco ios xe 16.5.3 • cisco ios xe 16.7.1 • cisco ios xe 16.7.2 • cisco ios xe 16.7.3 • cisco ios xe 16.8.1 • cisco ios xe 16.8.1a • cisco ios xe 16.8.1b • cisco ios xe 16.8.1c • cisco ios xe 16.8.1s • cisco ios xe 16.8.2 • cisco ios xe 16.8.3 • cisco ios xe 16.10.1 • cisco ios xe 16.10.1a • cisco ios xe 16.10.1b • cisco ios xe 16.10.1e • cisco ios xe 16.10.1s • cisco ios xe 16.10.2 • cisco ios xe 16.10.3 • cisco ios xe 16.11.1 • cisco ios xe 16.11.1a • cisco ios xe 16.11.1b • cisco ios xe 16.11.1c • cisco ios xe 16.11.1s • cisco ios xe 16.12.1 • cisco ios xe 16.12.1a • cisco ios xe 16.12.1c • cisco ios xe 16.12.1s • cisco ios xe 16.12.2 • cisco ios xe 16.12.2a • cisco ios xe 16.12.4 • cisco ios xe 16.12.8

Related

Weakness · CWE (2)

  • CWE-400 Uncontrolled Resource Consumption weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime weakness

References