Executive Summary
Summary | |
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Title | Cisco Email Security Appliance Denial of Service Vulnerability |
Informations | |||
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Name | cisco-sa-20170920-esa | First vendor Publication | 2017-09-20 |
Vendor | Cisco | Last vendor Modification | 2017-09-20 |
Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 7.8 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for the Cisco Email Security Appliance could allow an unauthenticated, remote attacker to cause an affected device to run out of memory and stop scanning and forwarding email messages. When system memory is depleted, it can cause the filtering process to crash, resulting in a denial of service (DoS) condition on the device. The vulnerability is due to improper input validation of email attachments that contain corrupted fields. An attacker could exploit this vulnerability by sending an email message with an attachment that contains corrupted fields through a targeted device. When the affected software filters the attachment, the filtering process could crash when the system runs out of memory and the process restarts, resulting in a DoS condition. After the filtering process restarts, the software resumes filtering for the same attachment, causing the filtering process to crash and restart again. A successful exploit could allow the attacker to cause a repeated DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-esa ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-esa"] BEGIN PGP SIGNATURE iQKBBAEBAgBrBQJZwpDBZBxDaXNjbyBTeXN0ZW1zIFByb2R1Y3QgU2VjdXJpdHkg SW5jaWRlbnQgUmVzcG9uc2UgVGVhbSAoQ2lzY28gUFNJUlQga2V5IDIwMTYtMjAx NykgPHBzaXJ0QGNpc2NvLmNvbT4ACgkQrz2APcQAkHkgEBAA01YiYLz0bJQ9itOz phoR2RQS6LRMtCjv4Ak3tqcTvXBNSztP/oyD5RbNf1Pqyf/ta2l5oCpeMTWqIVPG ZCQxg9z8GWN4ewELb3dEvMmMtlvuFG+YhUFKZS/v4428HUC0hyVEsRoIql+aXLm +BGFK2tZy6lhA4EyNL5O5Ahl71fLNQZTYhP38w/Uegu95PBU4NmrbzW3Gede6mGhv YFVc6OQOLTmnuMLVTctS0RNnVyg38E+kDjh/yDJu86QiJ86uUrW7Z4koDw9E3ThT EEFrs7ugyeZH84eZxeHI4nXTfDtYeL6/UfBdCP0vpuO/YbWADLtZwh6BOjOzL/m0 FKfJHdUrApvastg2F+RF9b76UBDqClxlY4CeNfKyIyyiTNUcfs7W91Vm0gu8RFYF E74t3mCI3qt0YXg4q1VXbTAI4sX0ibr+71S2g9SdqjmzIcW33hQKjR8D/NXhfmfV N55mP9dlDpT0w8nQmKaNqR67t9Lcz9TOIvEgGAyIrBI9igApgHWlFEtZCm+3BSp4 2ulJw/2p36ABAseWmkZz6cWLx15/DHf7ULkk/TIKlGI7f4WdKEuw476APJVLYBJs 4sVQckd9TN8VcG65Py0nvdDf6rhADLHpGc1cIgsDwFGzdCQZk0eEHfKnuYPR4REu vdev2J6CJ1Gkb2FOuLUL71IaNS8= =gUZV END PGP SIGNATURE _______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com |
Original Source
Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...) |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-20 | Improper Input Validation |
CPE : Common Platform Enumeration
Type | Description | Count |
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Os | 7 |
Nessus® Vulnerability Scanner
Date | Description |
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2017-09-25 | Name : The remote device is missing a vendor-supplied security patch. File : cisco-sa-20170920-esa-email_security_appliance.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2017-10-04 00:25:34 |
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2017-09-26 13:24:57 |
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2017-09-21 17:22:16 |
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