CVE-2021-1493: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Buffer Overflow Denial of Service Vulnerability
First published: Thu Apr 29 2021(Updated: )
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a buffer overflow on an affected system. The vulnerability is due to insufficient boundary checks for specific data that is provided to the web services interface of an affected system. An attacker could exploit this vulnerability by sending a malicious HTTP request. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system, which could disclose data fragments or cause the device to reload, resulting in a denial of service (DoS) condition.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Threat Defense | <6.4.0.12 | |
| Cisco Firepower Threat Defense | >=6.5.0<6.6.3 | |
| Cisco Firepower Threat Defense | >=6.7.0<6.7.0.1 | |
| Cisco Adaptive Security Appliance Software | >=9.8<9.8.4.34 | |
| Cisco Adaptive Security Appliance Software | >=9.9<9.9.2.85 | |
| Cisco Adaptive Security Appliance Software | >=9.10<9.12.4.13 | |
| Cisco Adaptive Security Appliance Software | >=9.13<9.13.1.21 | |
| Cisco Adaptive Security Appliance Software | >=9.14<9.14.2.8 | |
| Cisco Adaptive Security Appliance Software | >=9.15<9.15.1.7 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-1493?
CVE-2021-1493 is a vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
What is the severity of CVE-2021-1493?
The severity of CVE-2021-1493 is high, with a CVSS score of 7.1.
How does CVE-2021-1493 affect Cisco Firepower Threat Defense?
CVE-2021-1493 affects Cisco Firepower Threat Defense versions 6.4.0.12, 6.5.0 to 6.6.3, and 6.7.0 to 6.7.0.1.
How does CVE-2021-1493 affect Cisco Adaptive Security Appliance Software?
CVE-2021-1493 affects Cisco Adaptive Security Appliance Software versions 9.8 to 9.8.4.34, 9.9 to 9.9.2.85, 9.10 to 9.12.4.13, 9.13 to 9.13.1.21, 9.14 to 9.14.2.8, and 9.15 to 9.15.1.7.
How can I fix CVE-2021-1493?
To fix CVE-2021-1493, it is recommended to apply the necessary patches and updates provided by Cisco.
- collector/nvd-api
- collector/nvd-index
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/title
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco firepower threat defense
- version/cisco firepower threat defense/6.5.0
- version/cisco firepower threat defense/6.7.0
- canonical/cisco adaptive security appliance software
- version/cisco adaptive security appliance software/9.8
- version/cisco adaptive security appliance software/9.9
- version/cisco adaptive security appliance software/9.10
- version/cisco adaptive security appliance software/9.13
- version/cisco adaptive security appliance software/9.14
- version/cisco adaptive security appliance software/9.15