CVE-2016-3627 Denial of service in n/a

What is CVE-2016-3627?

CVE-2016-3627 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 May 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and earlier, when used in recovery mode, allows context-dependent attackers to cause a denial of service (infinite recursion, stack consumption, and application crash) via a crafted XML document.

Weakness: CWE-674

Which versions are affected by CVE-2016-3627?

It affects 14 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Hp Icewall Federation Agent, Hp Icewall File Manager, Opensuse Leap, Oracle Solaris and 8 more.

How do I fix CVE-2016-3627?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-3627 being exploited?

There is no known exploitation of CVE-2016-3627 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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 DEBIAN-CVE-2016-3627, ECHO-ac70-514a-8f81, GHSA-2xwf-cg9m-5547, SUSE-SU-2016:1204-1, SUSE-SU-2016:1205-1, UBUNTU-CVE-2016-3627.