The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Snort: denial of service via Ethernet Frame Decoder

Synthesis of the vulnerability 

An attacker can trigger a fatal error via Ethernet Frame Decoder of Snort, in order to trigger a denial of service.
Vulnerable products: Cisco Catalyst, Snort.
Severity of this weakness: 2/4.
Creation date: 04/03/2021.
Références of this bulletin: CERTFR-2021-AVI-166, cisco-sa-snort-ethernet-dos-HGXgJH8n, CSCvu88170, CVE-2021-1285, VIGILANCE-VUL-34752.

Description of the vulnerability 

An attacker can trigger a fatal error via Ethernet Frame Decoder of Snort, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This security bulletin impacts software or systems such as Cisco Catalyst, Snort.

Our Vigil@nce team determined that the severity of this cybersecurity announce is medium.

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

An attacker with a expert ability can exploit this vulnerability alert.

Solutions for this threat 

Snort: version 2.9.17.
The version 2.9.17 is fixed:
  https://www.snort.org/

Cisco Catalyst 8x00: solution CSCvu88170.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu88170
  https://tools.cisco.com/bugsearch/bug/CSCvu88170
  https://tools.cisco.com/quickview/bug/CSCvu88170
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computer security bulletin. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system.