Executive Summary
Summary | |
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Title | Cisco Adaptive Security Appliance Flow Creation Denial of Service Vulnerability |
Informations | |||
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Name | cisco-sa-20180418-asa2 | First vendor Publication | 2018-04-18 |
Vendor | Cisco | Last vendor Modification | 2018-04-18 |
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 ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the CPU to increase upwards of 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect handling of an internal software lock that could prevent other system processes from getting CPU cycles, causing a high CPU condition. An attacker could exploit this vulnerability by sending a steady stream of malicious IP packets that can cause connections to be created on the targeted device. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition during which traffic through the device could be delayed. This vulnerability applies to either IPv4 or IPv6 ingress traffic. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa2 ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa2"] BEGIN PGP SIGNATURE iQJ5BAEBAgBjBQJa127wXBxDaXNjbyBQcm9kdWN0IFNlY3VyaXR5IEluY2lkZW50 IFJlc3BvbnNlIFRlYW0gKENpc2NvIFBTSVJUIGtleSAyMDE4LTIwMTkpIDxwc2ly dEBjaXNjby5jb20+AAoJEJa12PPJBfczWm4P/3lhpWegz9tmeDGjy25JD673nEPT +8x0AcAC8FsbJdaB6bmkUDLiWxacuXc0aIWeVtB1MC17NILnZmsaGeHSGUVuE1wC n+2Cfyadt5MGVkN26S8Cs0R5obnNBvPCKDfu4WNVin2qc3ogrkxns8TTLKkYP4It ljFyAHG3ofLWMPEEJrfhXD/ykxLBa3ZfQh8xf/fTPigR6Lucq3B+Llkw5T7rRght unzikLtnlipAsU9QOd/twzzJlUFZfHsRM5dB8lQDnIskkkS4mQkxEswM++8fZPQ4 z4o+bEYrJZ9cIDjww9aVw8Pu0Kx9ggepNelUU1/ktfj1NOPaMfmdgYB9WwU7I4yg QLdPwhZMvbhMNbsjPI0BolbBO+mJSChwAhaYOWALt9I1KwKh7b3uk5lqcJ3otNT1 daSycswJu9OeefV3puYYQPwHMR8Ibgy0jCxM/NJeLnKjWDNgltgsmuvkGh8Yfe6r RLuoAO0pEn5zKMWwUf8ZWvXr8PicSJu+aV6bzT3hyHbdNCNNKJKnJs1Eu339DVgH szm/CjKhTs601OcIFqUTIohqu4aXl6+XFfhXu87FXQhO8n0QHGvpEGW7vh+L8+1x S9azvAg7LPsaeytML2UrvbiwhqdZyk5t/SgyRnUq425T6ZjytpnprwT8vGIteNTl 13VrsXAIFKTh7MJy =yfsY 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 |
---|---|---|
100 % | CWE-667 | Insufficient Locking |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
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2018-04-27 | Name : The remote device is missing a vendor-supplied security patch. File : cisco-sa-20180418-asa1.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2018-05-23 17:21:05 |
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2018-04-20 00:21:17 |
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2018-04-18 21:18:26 |
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