Cisco Security Advisory: Cisco IOS Software SSL VPN Denial of Service Vulnerability

Thu Mar 27 15:02:17 UTC 2014

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On Mar 26, 2014, at 10:52 AM, kendrick eastes <keastes at gmail.com> wrote:

> The Full-disclosure mailing list was recently... retired, I guess cisco
> thought NANOG was the next best place.
> 
> 
> On Wed, Mar 26, 2014 at 10:45 AM, rwebb at ropeguru.com <rwebb at ropeguru.com>wrote:
> 
>> 
>> Is this normal for the list to diretly get Cisco security advisories or
>> something new. First time I have seen these.
>> 
>> Robert
>> 
>> 
>> On Wed, 26 Mar 2014 12:10:00 -0400
>> Cisco Systems Product Security Incident Response Team <psirt at cisco.com>
>> wrote:
>> 
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>> 
>>> Cisco IOS Software SSL VPN Denial of Service Vulnerability
>>> 
>>> Advisory ID: cisco-sa-20140326-ios-sslvpn
>>> 
>>> Revision 1.0
>>> 
>>> For Public Release 2014 March 26 16:00  UTC (GMT)
>>> 
>>> Summary
>>> =======
>>> 
>>> A vulnerability in the Secure Sockets Layer (SSL) VPN subsystem of Cisco
>>> IOS Software could allow an unauthenticated, remote attacker to cause a
>>> denial of service (DoS) condition.
>>> 
>>> The vulnerability is due to a failure to process certain types of HTTP
>>> requests. To exploit the vulnerability, an attacker could submit crafted
>>> requests designed to consume memory to an affected device. An exploit could
>>> allow the attacker to consume and fragment memory on the affected device.
>>> This may cause reduced performance, a failure of certain processes, or a
>>> restart of the affected device.
>>> 
>>> Cisco has released free software updates that address this vulnerability.
>>> There are no workarounds to mitigate this vulnerability.
>>> 
>>> This advisory is available at the following link:
>>> http://tools.cisco.com/security/center/content/
>>> CiscoSecurityAdvisory/cisco-sa-20140326-ios-sslvpn
>>> 
>>> Note: The March 26, 2014, Cisco IOS Software Security Advisory bundled
>>> publication includes six Cisco Security Advisories. All advisories address
>>> vulnerabilities in Cisco IOS Software. Each Cisco IOS Software Security
>>> Advisory lists the Cisco IOS Software releases that correct the
>>> vulnerability or vulnerabilities detailed in the advisory as well as the
>>> Cisco IOS Software releases that correct all Cisco IOS Software
>>> vulnerabilities in the March 2014 bundled publication.
>>> 
>>> Individual publication links are in Cisco Event Response: Semiannual
>>> Cisco IOS Software Security Advisory Bundled Publication at the following
>>> link:
>>> 
>>> http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar14.html
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>>> 
>> 
>> 

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