#VU47211 Data Handling in Cisco IOS XE and Cisco 4461 Integrated Services Routers - CVE-2020-3414

Vulnerability identifier: #VU47211

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-3414

CWE-ID: CWE-19

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco IOS XE
Operating systems & Components / Operating system
Cisco 4461 Integrated Services Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect processing of IPv4 or IPv6 traffic to or through an affected device. A remote attacker can send IP traffic and cause the device to reload, resulting in a DoS condition.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Cisco IOS XE: 16.9.2, 16.10.4 - 16.12.3, 17.1.1

Cisco 4461 Integrated Services Routers: All versions

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISR4461-gKKUROhx

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.