Cisco IOS XR MPLS and Network Processor (NP) Chip DoS (Typhoon-based Line Cards)

medium Nessus Plugin ID 77222

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The remote Cisco device is running a version Cisco IOS XR software that is potentially affected by a denial of service vulnerability related the handling of maliciously crafted MPLS (Multiprotocol Label Switching) packets routed by a bridge-group virtual interface.

Note that this issue only affects Cisco ASR 9000 series devices using Typhoon-based line cards and MPLS.

Solution

Apply the relevant patch referenced in Cisco bug ID CSCuo91149.

Plugin Details

Severity: Medium

ID: 77222

File Name: cisco-sn-CSCuo91149-iosxr.nasl

Version: 1.10

Type: combined

Family: CISCO

Published: 8/18/2014

Updated: 4/8/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 4.2

Vector: CVSS2#AV:A/AC:M/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2014-3321

Vulnerability Information

CPE: cpe:/o:cisco:ios_xr

Required KB Items: Host/Cisco/IOS-XR/Version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 7/15/2014

Vulnerability Publication Date: 7/15/2014

Reference Information

CVE: CVE-2014-3321

BID: 68536

CISCO-BUG-ID: CSCuo91149

Detections

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