CVE-2011-4520 Memory corruption in n/a

Medium 4.3 Published Updated

Remote attackers can cause a denial of service in MICROSYS PROMOTIC via a crafted web page exploiting a heap-based buffer overflow in an ActiveX component.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2011-4520?

CVE-2011-4520 is a medium-severity memory corruption vulnerability in n/a, published on 23 May 2013. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.

Weakness: CWE-119

Which versions are affected by CVE-2011-4520?

It affects 1 product.

Products include Microsys Promotic.

How do I fix CVE-2011-4520?

No fix has been published for CVE-2011-4520 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-2011-4520 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4520 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-92hc-v7h5-rqc5.

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