PT-2016-1743 · Cisco · Cisco Ios Xr

Published 2016-04-12 · Updated 2016-12-03 · CVE-2016-1376

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cisco IOS XR versions 4.2.3 through 5.3.1

Description The issue exists due to insufficient input validation in packet processing functions, allowing a remote attacker to cause a denial of service by sending specially crafted packets. This can lead to cyclic redundancy check (CRC) and symbol errors on the receiving interface of an affected device, potentially causing an interface flap.

Recommendations For versions 4.2.3, 4.3.0, 4.3.4, and 5.3.1, update to a fixed software version to address the vulnerability. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2016-01069

CVE-2016-1376

Affected Products

Cisco Ios Xr

References · 5

• https://bdu.fstec.ru/vul/2016-01069 · Security Note
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160412-asr · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-1376 · Security Note
• https://osv.dev/vulnerability/CVE-2016-1376 · Vendor Advisory
• http://securitytracker.com/id/1035560 · Note