PT-2018-8633 · Cisco · Cisco Ios Xr

Published 2018-02-07 · Updated 2019-10-09 · CVE-2018-0132

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 IOS XR Software (affected versions not specified)

Description: A vulnerability in the forwarding information base (FIB) code could allow an unauthenticated, remote attacker to cause inconsistency between the routing information base (RIB) and the FIB, resulting in a denial of service (DoS) condition. The issue is due to incorrect processing of extremely long routing updates. An attacker could exploit this by sending a large routing update, triggering inconsistency between the FIB and the RIB and resulting in a DoS condition.

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

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2018-0132

Affected Products

Cisco Ios Xr

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-iosxr · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-0132 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-0132 · Security Note
• http://securitytracker.com/id/1040344 · Note
• http://securityfocus.com/bid/102975 · Note