CVE-2011-3296: High severity cisco firewall services module vulnerability

Published Oct 6, 2011
·
Updated

Cisco Firewall Services Module (aka FWSM) 3.1 before 3.1(21), 3.2 before 3.2(22), 4.0 before 4.0(16), and 4.1 before 4.1(7), when IPv6 is used, allows remote attackers to cause a denial of service (memory corruption and module crash or hang) via vectors that trigger syslog message 302015, aka Bug ID CSCti83875.

Affected Software

66 affected components
Cisco Firewall Services Module Software=3.1
Cisco Firewall Services Module Software=3.1\(2\)
Cisco Firewall Services Module Software=3.1\(3\)
Cisco Firewall Services Module Software=3.1\(4\)
Cisco Firewall Services Module Software=3.1\(5\)
Cisco Firewall Services Module Software=3.1\(6\)
Cisco Firewall Services Module Software=3.1\(7\)
Cisco Firewall Services Module Software=3.1\(8\)
Cisco Firewall Services Module Software=3.1\(9\)
Cisco Firewall Services Module Software=3.1\(10\)
Cisco Firewall Services Module Software=3.1\(11\)
Cisco Firewall Services Module Software=3.1\(12\)
Cisco Firewall Services Module Software=3.1\(13\)
Cisco Firewall Services Module Software=3.1\(14\)
Cisco Firewall Services Module Software=3.1\(15\)
Cisco Firewall Services Module Software=3.1\(16\)
Cisco Firewall Services Module Software=3.1\(17\)
Cisco Firewall Services Module Software=3.1\(18\)
Cisco Firewall Services Module Software=3.1\(19\)
Cisco Firewall Services Module Software=3.1\(20\)
Cisco Firewall Services Module Software=3.2
Cisco Firewall Services Module Software=3.2\(1\)
Cisco Firewall Services Module Software=3.2\(2\)
Cisco Firewall Services Module Software=3.2\(3\)
Cisco Firewall Services Module Software=3.2\(4\)
Cisco Firewall Services Module Software=3.2\(5\)
Cisco Firewall Services Module Software=3.2\(6\)
Cisco Firewall Services Module Software=3.2\(7\)
Cisco Firewall Services Module Software=3.2\(8\)
Cisco Firewall Services Module Software=3.2\(9\)
Cisco Firewall Services Module Software=3.2\(10\)
Cisco Firewall Services Module Software=3.2\(11\)
Cisco Firewall Services Module Software=3.2\(12\)
Cisco Firewall Services Module Software=3.2\(13\)
Cisco Firewall Services Module Software=3.2\(14\)
Cisco Firewall Services Module Software=3.2\(15\)
Cisco Firewall Services Module Software=3.2\(16\)
Cisco Firewall Services Module Software=3.2\(17\)
Cisco Firewall Services Module Software=3.2\(18\)
Cisco Firewall Services Module Software=3.2\(19\)
Cisco Firewall Services Module Software=3.2\(20\)
Cisco Firewall Services Module Software=3.2\(21\)
Cisco Firewall Services Module Software=4.0
Cisco Firewall Services Module Software=4.0\(1\)
Cisco Firewall Services Module Software=4.0\(2\)
Cisco Firewall Services Module Software=4.0\(3\)
Cisco Firewall Services Module Software=4.0\(4\)
Cisco Firewall Services Module Software=4.0\(5\)
Cisco Firewall Services Module Software=4.0\(6\)
Cisco Firewall Services Module Software=4.0\(7\)
Cisco Firewall Services Module Software=4.0\(8\)
Cisco Firewall Services Module Software=4.0\(10\)
Cisco Firewall Services Module Software=4.0\(11\)
Cisco Firewall Services Module Software=4.0\(12\)
Cisco Firewall Services Module Software=4.0\(13\)
Cisco Firewall Services Module Software=4.0\(14\)
Cisco Firewall Services Module Software=4.0\(15\)
Cisco Firewall Services Module Software=4.1
Cisco Firewall Services Module Software=4.1\(1\)
Cisco Firewall Services Module Software=4.1\(2\)
Cisco Firewall Services Module Software=4.1\(3\)
Cisco Firewall Services Module Software=4.1\(4\)
Cisco Firewall Services Module Software=4.1\(5\)
Cisco Firewall Services Module Software=4.1\(6\)
Cisco Catalyst 6500
Cisco Catalyst 7600

Event History

Oct 6, 2011
CVE Published
via MITRE·10:00 AM
Data Sourced
via MITRE·10:00 AM
Description
Data Sourced
10:55 AM
DescriptionWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2011-3296?

CVE-2011-3296 has a high severity rating as it can lead to a denial of service through memory corruption and module crashes.

2

How do I fix CVE-2011-3296?

To fix CVE-2011-3296, upgrade to Cisco Firewall Services Module software versions 3.1(21), 3.2(22), 4.0(16), or 4.1(7) or later.

3

Which Cisco products are affected by CVE-2011-3296?

CVE-2011-3296 affects Cisco Firewall Services Module software versions 3.1, 3.2, 4.0, and 4.1 when IPv6 is enabled.

4

What kind of attack does CVE-2011-3296 allow?

CVE-2011-3296 allows remote attackers to execute a denial of service attack that can cause the system to crash or hang.

5

Is there a workaround for CVE-2011-3296?

There is no specific workaround for CVE-2011-3296; the best mitigation is to apply the recommended software updates.

Company

Resources

Contact

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