CVE-2021-34741

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.
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:13.5.3-010:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:13.7.0-093:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:m170:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m190:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m380:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m390:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m390x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m680:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m690:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m690x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s195:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s395:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s695:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:11

Type Values Removed Values Added
References () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO - Vendor Advisory () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO - Vendor Advisory

Information

Published : 2021-11-04 16:15

Updated : 2024-11-21 06:11


NVD link : CVE-2021-34741

Mitre link : CVE-2021-34741

CVE.ORG link : CVE-2021-34741


JSON object : View

Products Affected

cisco

  • m170
  • m690x
  • asyncos
  • m390
  • m380
  • s195
  • s395
  • m190
  • m390x
  • m680
  • s695
  • m690
CWE
CWE-770

Allocation of Resources Without Limits or Throttling