7.8
CWE
399
Advisory Published
Updated

CVE-2010-2836

First published: Thu Sep 23 2010(Updated: )

Memory leak in the SSL VPN feature in Cisco IOS 12.4, 15.0, and 15.1, when HTTP port redirection is enabled, allows remote attackers to cause a denial of service (memory consumption) by improperly disconnecting SSL sessions, leading to connections that remain in the CLOSE-WAIT state, aka Bug ID CSCtg21685.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Puppet Cisco IOS=12.4
Puppet Cisco IOS=12.4gc
Puppet Cisco IOS=12.4mda
Puppet Cisco IOS=12.4mr
Puppet Cisco IOS=12.4mra
Puppet Cisco IOS=12.4sw
Puppet Cisco IOS=12.4xa
Puppet Cisco IOS=12.4xb
Puppet Cisco IOS=12.4xc
Puppet Cisco IOS=12.4xd
Puppet Cisco IOS=12.4xe
Puppet Cisco IOS=12.4xf
Puppet Cisco IOS=12.4xg
Puppet Cisco IOS=12.4xj
Puppet Cisco IOS=12.4xk
Puppet Cisco IOS=12.4xl
Puppet Cisco IOS=12.4xm
Puppet Cisco IOS=12.4xn
Puppet Cisco IOS=12.4xp
Puppet Cisco IOS=12.4xt
Puppet Cisco IOS=12.4xv
Puppet Cisco IOS=12.4xw
Puppet Cisco IOS=12.4xy
Puppet Cisco IOS=12.4xz
Puppet Cisco IOS=12.4ya
Puppet Cisco IOS=12.4yb
Puppet Cisco IOS=12.4yd
Puppet Cisco IOS=15.0m
Puppet Cisco IOS=15.0xa
Puppet Cisco IOS=15.1\(1\)xb1
Puppet Cisco IOS=15.1t

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Frequently Asked Questions

  • What is the severity of CVE-2010-2836?

    CVE-2010-2836 is classified as a denial of service vulnerability with moderate severity.

  • How do I fix CVE-2010-2836?

    To remediate CVE-2010-2836, update your Cisco IOS version to a non-affected release where the SSL VPN memory leak issue is resolved.

  • What impact does CVE-2010-2836 have on affected systems?

    CVE-2010-2836 can lead to a denial of service by causing excessive memory consumption due to lingering SSL sessions.

  • Which Cisco IOS versions are affected by CVE-2010-2836?

    CVE-2010-2836 affects specific versions of Cisco IOS including 12.4, 15.0, and 15.1.

  • Can CVE-2010-2836 be exploited remotely?

    Yes, CVE-2010-2836 can be exploited remotely by attackers disconnecting SSL sessions improperly.

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