CVE-2011-3296 Memory corruption in n/a

High 7.8 Published Updated

Remote attackers can cause a denial of service via memory corruption in Cisco FWSM when IPv6 is enabled, requiring a software upgrade.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2011-3296?

CVE-2011-3296 is a high-severity memory corruption vulnerability in n/a, published on 6 Oct 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-399

Which versions are affected by CVE-2011-3296?

It affects 3 products.

Products include Cisco Catalyst 6500, Cisco Catalyst 7600, Cisco Firewall Services Module Software.

How do I fix CVE-2011-3296?

No fix has been published for CVE-2011-3296 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2011-3296 being exploited?

There is no known exploitation of CVE-2011-3296 in the wild and no public exploit code.

Sources

Also known as GHSA-7mmw-mfh4-g635.

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