CVE-2020-3283: Cisco Firepower 1000 Series SSL/TLS Denial of Service Vulnerability
First published: Wed May 06 2020(Updated: )
A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Firepower Threat Defense (FTD) Software when running on the Cisco Firepower 1000 Series platform could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a communication error between internal functions. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause a buffer underrun, which leads to a crash. The crash causes the affected device to reload.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Threat Defense | >=6.4.0<6.4.0.9 | |
| Cisco Firepower 1010 | ||
| Cisco Firepower 1020 | ||
| Cisco Firepower 1030 | ||
| Cisco Firepower 1040 | ||
| Cisco Asa 5505 Firmware | =9.12\(2.12\) | |
| Cisco Asa 5505 Firmware | =9.13\(0.33\) | |
| Cisco Asa 5505 | ||
| Cisco Asa 5510 Firmware | =9.12\(2.12\) | |
| Cisco Asa 5510 Firmware | =9.13\(0.33\) | |
| Cisco Asa 5510 | ||
| Cisco Asa 5512-x Firmware | =9.12\(2.12\) | |
| Cisco Asa 5512-x Firmware | =9.13\(0.33\) | |
| Cisco Asa 5512-x | ||
| Cisco Asa 5515-x Firmware | =9.12\(2.12\) | |
| Cisco Asa 5515-x Firmware | =9.13\(0.33\) | |
| Cisco Asa 5515-x | ||
| Cisco Asa 5520 Firmware | =9.12\(2.12\) | |
| Cisco Asa 5520 Firmware | =9.13\(0.33\) | |
| Cisco Asa 5520 | ||
| Cisco Asa 5525-x Firmware | =9.12\(2.12\) | |
| Cisco Asa 5525-x Firmware | =9.13\(0.33\) | |
| Cisco Asa 5525-x | ||
| Cisco Asa 5540 Firmware | =9.12\(2.12\) | |
| Cisco Asa 5540 Firmware | =9.13\(0.33\) | |
| Cisco Asa 5540 | ||
| Cisco Asa 5545-x Firmware | =9.12\(2.12\) | |
| Cisco Asa 5545-x Firmware | =9.13\(0.33\) | |
| Cisco Asa 5545-x | ||
| Cisco Asa 5550 Firmware | =9.12\(2.12\) | |
| Cisco Asa 5550 Firmware | =9.13\(0.33\) | |
| Cisco Asa 5550 | ||
| Cisco Asa 5555-x Firmware | =9.12\(2.12\) | |
| Cisco Asa 5555-x Firmware | =9.13\(0.33\) | |
| Cisco Asa 5555-x | ||
| Cisco Asa 5580 Firmware | =9.12\(2.12\) | |
| Cisco Asa 5580 Firmware | =9.13\(0.33\) | |
| Cisco Asa 5580 | ||
| Cisco Asa 5585-x Firmware | =9.12\(2.12\) | |
| Cisco Asa 5585-x Firmware | =9.13\(0.33\) | |
| Cisco Asa 5585-x |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-3283?
The severity of CVE-2020-3283 is high, with a severity value of 8.6.
How does CVE-2020-3283 affect Cisco Firepower Threat Defense?
CVE-2020-3283 affects Cisco Firepower Threat Defense running on the Cisco Firepower 1000 Series platform, potentially triggering a denial of service (DoS) condition.
Which Cisco ASA devices are affected by CVE-2020-3283?
Cisco ASA devices such as ASA 5505, ASA 5510, ASA 5512-x, ASA 5515-x, ASA 5520, ASA 5525-x, ASA 5540, ASA 5545-x, ASA 5550, ASA 5555-x, ASA 5580, and ASA 5585-x are not vulnerable to CVE-2020-3283.
How can I fix CVE-2020-3283?
To fix CVE-2020-3283, Cisco has released software updates. Please refer to the Cisco Security Advisory for specific details and instructions.
Where can I find more information about CVE-2020-3283?
More information about CVE-2020-3283 can be found in the Cisco Security Advisory.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/references
- agent/author
- agent/title
- agent/description
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco firepower threat defense
- version/cisco firepower threat defense/6.4.0
- canonical/cisco firepower 1010
- canonical/cisco firepower 1020
- canonical/cisco firepower 1030
- canonical/cisco firepower 1040
- canonical/cisco asa 5505 firmware
- version/cisco asa 5505 firmware/9.12\(2.12\)
- version/cisco asa 5505 firmware/9.13\(0.33\)
- canonical/cisco asa 5505
- canonical/cisco asa 5510 firmware
- version/cisco asa 5510 firmware/9.12\(2.12\)
- version/cisco asa 5510 firmware/9.13\(0.33\)
- canonical/cisco asa 5510
- canonical/cisco asa 5512-x firmware
- version/cisco asa 5512-x firmware/9.12\(2.12\)
- version/cisco asa 5512-x firmware/9.13\(0.33\)
- canonical/cisco asa 5512-x
- canonical/cisco asa 5515-x firmware
- version/cisco asa 5515-x firmware/9.12\(2.12\)
- version/cisco asa 5515-x firmware/9.13\(0.33\)
- canonical/cisco asa 5515-x
- canonical/cisco asa 5520 firmware
- version/cisco asa 5520 firmware/9.12\(2.12\)
- version/cisco asa 5520 firmware/9.13\(0.33\)
- canonical/cisco asa 5520
- canonical/cisco asa 5525-x firmware
- version/cisco asa 5525-x firmware/9.12\(2.12\)
- version/cisco asa 5525-x firmware/9.13\(0.33\)
- canonical/cisco asa 5525-x
- canonical/cisco asa 5540 firmware
- version/cisco asa 5540 firmware/9.12\(2.12\)
- version/cisco asa 5540 firmware/9.13\(0.33\)
- canonical/cisco asa 5540
- canonical/cisco asa 5545-x firmware
- version/cisco asa 5545-x firmware/9.12\(2.12\)
- version/cisco asa 5545-x firmware/9.13\(0.33\)
- canonical/cisco asa 5545-x
- canonical/cisco asa 5550 firmware
- version/cisco asa 5550 firmware/9.12\(2.12\)
- version/cisco asa 5550 firmware/9.13\(0.33\)
- canonical/cisco asa 5550
- canonical/cisco asa 5555-x firmware
- version/cisco asa 5555-x firmware/9.12\(2.12\)
- version/cisco asa 5555-x firmware/9.13\(0.33\)
- canonical/cisco asa 5555-x
- canonical/cisco asa 5580 firmware
- version/cisco asa 5580 firmware/9.12\(2.12\)
- version/cisco asa 5580 firmware/9.13\(0.33\)
- canonical/cisco asa 5580
- canonical/cisco asa 5585-x firmware
- version/cisco asa 5585-x firmware/9.12\(2.12\)
- version/cisco asa 5585-x firmware/9.13\(0.33\)
- canonical/cisco asa 5585-x