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Secunia Network Software Inspector 2.0 (NSI) - Public Beta

The Public Beta has ended. Thanks to all that participated.

Learn more:
http://secunia.com/network_software_inspector_2/

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TITLE:
Cisco IOS SSH Server Denial of Service

SECUNIA ADVISORY ID:
SA30322

VERIFY ADVISORY:
http://secunia.com/advisories/30322/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
Cisco IOS R12.x
http://secunia.com/product/50/
Cisco IOS 12.x
http://secunia.com/product/182/

DESCRIPTION:
Some vulnerabilities have been reported in Cisco IOS, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerabilities are caused due to unspecified errors within the
SSH server implementation in Cisco IOS. These can be exploited to
generate a spurious memory access or to reload the device.

Successful exploitation requires that the SSH server is enabled (not
enabled by default).

The vulnerabilities are reported in certain 12.4-based IOS releases.

NOTE: IOS releases prior to 12.4(7), 12.4(13d)JA, and 12.4(9)T are
reportedly not affected by this vulnerability.

SOLUTION:
Update to a fixed version (please see the vendor's advisory for
details).

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sa-20080521-ssh.shtml

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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