CVE-2019-1947

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause the CPU utilization to increase to 100 percent, causing a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of email messages that contain large attachments. An attacker could exploit this vulnerability by sending a malicious email message through the targeted device. A successful exploit could allow the attacker to cause a permanent DoS condition due to high CPU utilization. This vulnerability may require manual intervention to recover the ESA.

CVSS v3 8.6 HIGH
CVSS v2.0 7.8 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-esa-dos	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cisco:email_security_appliance:11.1.0-131:::::::*
	cpe:2.3:o:cisco:asyncos:12.1.0-085:::::::*

History

No history.

Information

Published : 2020-09-23 01:15

Updated : 2024-02-04 21:23

NVD link : CVE-2019-1947

Mitre link : CVE-2019-1947

CVE.ORG link : CVE-2019-1947

JSON object : View

Products Affected

cisco

asyncos
email_security_appliance

CWE

CWE-20

Improper Input Validation

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