PT-2019-2040 · Cisco · Cisco Ftd

Published 2019-05-01 · Updated 2020-10-07 · CVE-2019-1703

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 Firepower Threat Defense (FTD) Software for the Cisco Firepower 2100 Series (affected versions not specified)

Description A logic error in the internal packet-processing functionality could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability may prevent ingress buffers from being replenished under specific traffic conditions. An attacker could exploit this by sending a series of crafted packets to an affected device, consuming all input buffers and leading to a queue wedge condition in all active interfaces. This situation would cause an affected device to stop processing any incoming traffic and result in a DoS condition until the device is reloaded manually.

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

Allocation of Resources Without Limits

Resource Exhaustion

Weakness Enumeration

CWE-770

CWE-400

Related Identifiers

BDU:2019-01785

CVE-2019-1703

Affected Products

Cisco Ftd

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2019-1703 · Security Note
• https://bdu.fstec.ru/vul/2019-01785 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1703 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-frpwr-dos · Vendor Advisory
• https://securityfocus.com/bid/108170 · Note
• http://securityfocus.com/bid/108170 · Note