CVE-2016-4483 Denial of service in n/a

What is CVE-2016-4483?

CVE-2016-4483 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 11 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.

Weakness: CWE-502

Which versions are affected by CVE-2016-4483?

It affects 3 products.

Products include Debian Debian Linux, Oracle Solaris, Xmlsoft Libxml2.

How do I fix CVE-2016-4483?

Apply the vendor's patch.

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-2016-4483 being exploited?

There is no known exploitation of CVE-2016-4483 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2016-4483, ECHO-4d80-4cc5-9533, GHSA-xr2r-hh4x-gv58, UBUNTU-CVE-2016-4483.