CVE-2015-8866 XML external entity in n/a

What is CVE-2015-8866?

CVE-2015-8866 is a critical vulnerability in Canonical Ubuntu Linux, published on 22 May 2016. 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

ext/libxml/libxml.c in PHP before 5.5.22 and 5.6.x before 5.6.6, when PHP-FPM is used, does not isolate each thread from libxml_disable_entity_loader changes in other threads, which allows remote attackers to conduct XML External Entity (XXE) and XML Entity Expansion (XEE) attacks via a crafted XML document, a related issue to CVE-2015-5161.

Weakness: CWE-611

Which versions are affected by CVE-2015-8866?

It affects 6 products.

Products include Canonical Ubuntu Linux, Opensuse Leap, Opensuse Opensuse, Php Php, Suse Linux Enterprise Module for Web Scripting, Suse Linux Enterprise Software Development Kit.

How do I fix CVE-2015-8866?

Upgrade to a fixed version.

Is CVE-2015-8866 being exploited?

There is no known exploitation of CVE-2015-8866 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x5qj-644j-7xc7, UBUNTU-CVE-2015-8866.