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Vulnerability of Cisco IOS XE: denial of service via Login Enhancements

Synthesis of the vulnerability 

An attacker can generate a fatal error via Login Enhancements of Cisco IOS XE, in order to trigger a denial of service.
Vulnerable products: Cisco Catalyst, IOS XE Cisco.
Severity of this weakness: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 29/03/2018.
Références of this bulletin: CERTFR-2018-AVI-156, cisco-sa-20180328-slogin, CSCuy32360, CSCuz60599, CVE-2018-0179, CVE-2018-0180, VIGILANCE-VUL-25704.

Description of the vulnerability 

An attacker can generate a fatal error via Login Enhancements of Cisco IOS XE, in order to trigger a denial of service.
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This computer vulnerability impacts software or systems such as Cisco Catalyst, IOS XE Cisco.

Our Vigil@nce team determined that the severity of this weakness bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this weakness.

Solutions for this threat 

Cisco IOS XE: solution for Login Enhancements.
The solution is indicated in information sources.
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