CVE-2016-6293 Memory corruption in n/a

Critical 9.8 Published 25 Jul 2016 Updated 6 Aug 2024

Remote attackers can cause denial of service via out-of-bounds read in ICU library when processing long HTTP Accept-Language headers.

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

What is CVE-2016-6293?

CVE-2016-6293 is a critical memory corruption vulnerability in n/a, published on 25 Jul 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument.

Weakness: CWE-119

Which versions are affected by CVE-2016-6293?

It affects 1 product.

Products include Icu-Project International Components for Unicode.

How do I fix CVE-2016-6293?

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-2016-6293 being exploited?

There is no known exploitation of CVE-2016-6293 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2016-6293, CLEANSTART-2026-HM87763, DEBIAN-CVE-2016-6293, DLA-615-1, GHSA-jw29-rmwq-xp9m, MGASA-2016-0314 and 1 more.