CVE-2004-0842 Memory corruption in n/a

High 7.5 Published Updated

Remote attackers can crash Internet Explorer via malformed CSS causing heap buffer overflows, requiring user interaction to view the malicious content.

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-2004-0842?

CVE-2004-0842 is a high-severity memory corruption vulnerability in Microsoft Ie, published on 14 Sep 2004. 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

Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (application crash from "memory corruption") via certain malformed Cascading Style Sheet (CSS) elements that trigger heap-based buffer overflows, as demonstrated using the "<STYLE>@;/*" string, possibly due to a missing comment terminator that may cause an invalid length to trigger a large memory copy operation, aka the "CSS Heap Memory Corruption Vulnerability."

Which versions are affected by CVE-2004-0842?

It affects 7 products.

Products include Avaya Definity One Media Server, Avaya Ip600 Media Servers, Avaya Modular Messaging Message Storage Server, Avaya S3400, Avaya S8100, Microsoft Ie and 1 more.

How do I fix CVE-2004-0842?

No fix has been published for CVE-2004-0842 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-2004-0842 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-0842 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Ie vulnerabilities

Sources

Also known as GHSA-g4xq-83hp-jc9q.

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