CVE-2017-17484 Memory corruption in n/a

Critical 9.8 Published 10 Dec 2017 Updated 5 Aug 2024

Remote attackers can cause a denial of service via stack-based buffer overflow in the ICU library's UTF-8 conversion function.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2017-17484?

CVE-2017-17484 is a critical memory corruption vulnerability in n/a, published on 10 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC.

Weakness: CWE-119

Which versions are affected by CVE-2017-17484?

It affects 1 product.

Products include Icu-Project International Components for Unicode.

How do I fix CVE-2017-17484?

Upgrade to a fixed version.

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

Is CVE-2017-17484 being exploited?

There is no known exploitation of CVE-2017-17484 in the wild and no public exploit code.

Sources

Also known as GHSA-84mq-mqjx-rfmc.