PT-2019-1887 · Cisco · Cisco Ios Xe

Published 2019-03-27 · Updated 2020-10-08 · CVE-2019-1741

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 XE Software (affected versions not specified)

Description A vulnerability in the Cisco Encrypted Traffic Analytics (ETA) feature could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The issue is due to a logic error when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this by sending crafted, malformed IP packets to an affected device, potentially causing the device to reload 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

Use After Free

RCE

Weakness Enumeration

CWE-416

CWE-20

Related Identifiers

BDU:2019-01540

CVE-2019-1741

Affected Products

Cisco Ios Xe

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-eta-dos · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-1741 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1741 · Security Note
• https://bdu.fstec.ru/vul/2019-01540 · Security Note
• http://securityfocus.com/bid/107614 · Note