A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition.
                
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Affected Vendors & Products
References
        History
                    Thu, 07 Nov 2024 22:15:00 +0000
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 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: cisco
Published: 2021-11-04T15:40:17.777881Z
Updated: 2024-11-07T21:44:52.277Z
Reserved: 2021-06-15T00:00:00
Link: CVE-2021-34741
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-04T00:19:48.129Z
 NVD
                        NVD
                    Status : Modified
Published: 2021-11-04T16:15:08.660
Modified: 2024-11-21T06:11:05.927
Link: CVE-2021-34741
 Redhat
                        Redhat
                    No data.