CVE-2021-1285: Multiple Cisco Products SNORT Ethernet Frame Decoder Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in the Ethernet Frame Decoder of the Snort detection engine that could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper handling of error conditions when processing Ethernet frames. An attacker could exploit this vulnerability by sending malicious Ethernet frames through an affected device. A successful exploit could allow the attacker to exhaust disk space on the affected device, which could result in administrators being unable to log in to the device or the device being unable to boot up correctly.Note: Manual intervention is required to recover from this situation. Customers are advised to contact the Cisco Technical Assistance Center (TAC) to help recover a device in this condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-1285?
CVE-2021-1285 is classified as a high-severity vulnerability due to its potential to cause a denial of service condition.
How do I fix CVE-2021-1285?
To fix CVE-2021-1285, update your Cisco Snort installation to the latest version that addresses this vulnerability.
What products are affected by CVE-2021-1285?
CVE-2021-1285 affects multiple Cisco products, specifically those using the Snort detection engine.
Can CVE-2021-1285 be exploited remotely?
No, CVE-2021-1285 requires an adjacent attacker to exploit the vulnerability.
What type of attack does CVE-2021-1285 enable?
CVE-2021-1285 may enable attackers to cause a denial of service (DoS) condition.