PT-2011-3565 · Cisco · Cisco Ios

Published 2011-10-22 · Updated 2020-08-05 · CVE-2011-2058

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS versions prior to 12.2(33)SXI7

Description The issue is related to the cat6000-dot1x component, which does not properly handle an external loop between a pair of dot1x enabled ports. This allows remote attackers to cause a denial of service, also known as a traffic storm, via unspecified vectors that trigger many unicast EAPoL Protocol Data Units (PDUs).

Recommendations For versions prior to 12.2(33)SXI7, update to version 12.2(33)SXI7 or later to resolve the issue. As a temporary workaround, consider restricting the use of dot1x enabled ports to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-2058

Affected Products

Cisco Ios

References · 2

• http://cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/release/notes/caveats_SXI_rebuilds.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-2058 · Security Note