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ciscoCiscoCISCO-SA-20180926-WEBDOS
HistorySep 26, 2018 - 4:00 p.m.

Cisco IOS XE Software HTTP Denial of Service Vulnerability

2018-09-2616:00:00
tools.cisco.com
83

0.003 Low

EPSS

Percentile

70.7%

A vulnerability in the web framework of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a buffer overflow condition on an affected device, resulting in a denial of service (DoS) condition.

The vulnerability is due to the affected software improperly parsing malformed HTTP packets that are destined to a device. An attacker could exploit this vulnerability by sending a malformed HTTP packet to an affected device for processing. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected device, resulting in a DoS condition.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-webdos [“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-webdos”]
This advisory is part of the September 26, 2018, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 12 Cisco Security Advisories that describe 13 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication [“https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-69981”].

Affected configurations

Vulners
Node
ciscocisco_iosMatch16.1xe
OR
ciscocisco_iosMatch16.2xe
OR
ciscocisco_iosMatch16.3xe
OR
ciscocisco_iosMatch16.4xe
OR
ciscocisco_iosMatch16.5xe
OR
ciscocisco_iosMatch16.9xe
OR
ciscocisco_iosMatch16.1.1xe
OR
ciscocisco_iosMatch16.1.2xe
OR
ciscocisco_iosMatch16.1.3xe
OR
ciscocisco_iosMatch16.2.1xe
OR
ciscocisco_iosMatch16.2.2xe
OR
ciscocisco_iosMatch16.3.1xe
OR
ciscocisco_iosMatch16.3.2xe
OR
ciscocisco_iosMatch16.3.3xe
OR
ciscocisco_iosMatch16.3.1axe
OR
ciscocisco_iosMatch16.3.4xe
OR
ciscocisco_iosMatch16.3.5xe
OR
ciscocisco_iosMatch16.3.5bxe
OR
ciscocisco_iosMatch16.3.6xe
OR
ciscocisco_iosMatch16.4.1xe
OR
ciscocisco_iosMatch16.4.2xe
OR
ciscocisco_iosMatch16.4.3xe
OR
ciscocisco_iosMatch16.5.1xe
OR
ciscocisco_iosMatch16.5.1axe
OR
ciscocisco_iosMatch16.5.1bxe
OR
ciscocisco_iosMatch16.5.2xe
OR
ciscocisco_iosMatch16.5.3xe
OR
ciscocisco_iosMatch16.9.1bxe

0.003 Low

EPSS

Percentile

70.7%

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