A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. 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 the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability.
Project Subscriptions
| Vendors | Products |
|---|---|
|
Cisco
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|
Adaptive Security Appliance Software
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Asa 5505
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Asa 5505 Firmware
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Asa 5512-x
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Asa 5512-x Firmware
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Asa 5515-x
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Asa 5515-x Firmware
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Asa 5525-x
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Asa 5525-x Firmware
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Asa 5545-x
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Asa 5545-x Firmware
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Asa 5555-x
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Asa 5555-x Firmware
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Asa 5580
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Asa 5580 Firmware
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Asa 5585-x
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Asa 5585-x Firmware
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Firepower Threat Defense
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|
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-21433 | A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. 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 the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 07 Nov 2024 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Projects
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-07T21:46:04.938Z
Reserved: 2021-06-15T00:00:00
Link: CVE-2021-34783
Updated: 2024-08-04T00:19:48.253Z
Status : Modified
Published: 2021-10-27T19:15:08.290
Modified: 2024-11-21T06:11:11.547
Link: CVE-2021-34783
No data.
OpenCVE Enrichment
No data.
EUVD