CVE-2003-0870 Memory corruption in n/a

High 7.5 Published Updated

Remote attackers can execute arbitrary code via a crafted HREF with excessive escaped characters, requiring user interaction to visit the link.

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-2003-0870?

CVE-2003-0870 is a high-severity memory corruption vulnerability in Opera Opera Browser, published on 21 Oct 2003. 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 Opera 7.11 and 7.20 allows remote attackers to execute arbitrary code via an HREF with a large number of escaped characters in the server name.

Weakness: CWE-787

Which versions are affected by CVE-2003-0870?

It affects 1 product.

Products include Opera Opera Browser.

How do I fix CVE-2003-0870?

No fix has been published for CVE-2003-0870 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-2003-0870 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0870 exists.

Public exploit code: 1 Exploit-DB entry.

All Opera Opera Browser vulnerabilities

Sources

Also known as GHSA-4mv7-62g7-98v4.

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