Executive Summary
Summary | |
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Title | Cisco NX-OS Software Pong Packet Denial of Service Vulnerability |
Informations | |||
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Name | cisco-sa-20180117-nx-os | First vendor Publication | 2018-01-17 |
Vendor | Cisco | Last vendor Modification | 2018-01-17 |
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:A/AC:L/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 6.1 | Attack Range | Adjacent network |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 6.5 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A vulnerability in the Pong tool of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software attempts to free the same area of memory twice. An attacker could exploit this vulnerability by sending a pong request to an affected device from a location on the network that causes the pong reply packet to egress both a FabricPath port and a non-FabricPath port. An exploit could allow the attacker to cause a dual or quad supervisor virtual port-channel (vPC) to reload. Note: This vulnerability is exploitable only when all of the following are true: The Pong tool is enabled on an affected device. The Pong tool is disabled in NX-OS by default. The FabricPath feature is enabled on an affected device. The FabricPath feature is disabled in NX-OS by default. A FabricPath port is actively monitored via a Switched Port Analyzer (SPAN) session. SPAN sessions are not configured or enabled in NX-OS by default. 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-20180117-nx-os ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-nx-os"] BEGIN PGP SIGNATURE iQJ5BAEBAgBjBQJaX3RKXBxDaXNjbyBQcm9kdWN0IFNlY3VyaXR5IEluY2lkZW50 IFJlc3BvbnNlIFRlYW0gKENpc2NvIFBTSVJUIGtleSAyMDE4LTIwMTkpIDxwc2ly dEBjaXNjby5jb20+AAoJEJa12PPJBfczSusQAJ7bsLDKdGrfJjsKzy115mri4iRr MZxBrrqhTorGKmifzpwlIwkpkficuETYpb1JcbssiQ3KO9OCZEiN6+agIaDUrZRZ QWkC/K5hrnmO+iAcMMkW2Pv/NssBE6ag6vhFNMkZQcP9OkRaZZPmgSWzvJd4czpv dakYg1hllpR8I1+Uy/wH+a6t6Z4xc8aQIcTTWxg2Zb559epbRqjV4iXQ3gpEaz+W Qw+1H3bit/kHz52FsKarUOZwJcHchrLCLL63VKxUcLD8F6MXzS2gG+qgoZLs0Nxz 7tifaUAZvVIzb58jzMWK/dHkW3dnjGOfK31VEHfe1bFlJdWvyUDQmJvMuoqL5ODO f4EFVs/cZMpxuzBbO8iH0anYRtf9UNN1ozvJ/znB5TPuHI/SQFKEIIJvuCw1rtit 7zFUUrT2iv5JbRUCLDTjxhmXgzCS6NJeZlunjetIKQPm+9to4bHEkdFp2w3hLdbN 8t1d8O2XrhnpWJUOSTYMkB2qehBV3ir23QCTkBf5bVDrzpTPaOC1rnGwbQfYJwPf 5xTlR/f3qrwr1izUlP86xSJvOWqIcBUNXwoV/UczoxEsY3LbJC5CbOSkcE8fizxp qb/FBRQjarO9xticzJFyIJJhyPlF8ceHPgIdes2WvtxDBTpO19qvPQ8BoGcSK5Up D/TD9ZhQsmIb01cs =Fvcv 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-415 | Double Free |
CPE : Common Platform Enumeration
Type | Description | Count |
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Os | 3 |
Alert History
Date | Informations |
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2018-02-07 17:22:01 |
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2018-01-18 12:10:36 |
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2018-01-17 21:21:33 |
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