PT-2020-4231 · Cisco · Cisco Staros

Published 2020-08-05 · Updated 2020-08-20 · CVE-2020-3500

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Cisco StarOS (affected versions not specified)

Description: A vulnerability in the IPv6 implementation could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The issue is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this by sending a crafted IPv6 packet to an affected device, potentially causing the device to reload and resulting in a DoS condition. This issue is specific to IPv6 traffic and does not affect IPv4 traffic.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2020-04671

CVE-2020-3500

Affected Products

Cisco Staros

References · 4

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr5k-ipv6-dos-ce3zhF8m · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3500 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3500 · Security Note
• https://bdu.fstec.ru/vul/2020-04671 · Security Note