CVE-2016-4483

Name: CVE-2016-4483
Creator: NVD / NIST
Published: 2017-04-11T16:59:00.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 6.17%

Last modified Jun 17, 2026

CVE-2016-4483 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 6.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

6.17%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Xmlsoft	Libxml2	< 2.9.4
Debian	Debian Linux	8.0
Oracle	Solaris	11.3

References

http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3593Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/03/8Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/04/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/4Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/5Mailing List, Patch, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
http://www.securityfocus.com/bid/90013Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036348Third Party Advisory, VDB Entry
https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfdPatch, Third Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://security.gentoo.org/glsa/201701-37Third Party Advisory
https://www.tenable.com/security/tns-2016-18Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3593Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/03/8Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/04/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/4Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/5Mailing List, Patch, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
http://www.securityfocus.com/bid/90013Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036348Third Party Advisory, VDB Entry
https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfdPatch, Third Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://security.gentoo.org/glsa/201701-37Third Party Advisory
https://www.tenable.com/security/tns-2016-18Third Party Advisory

Timeline

Published: Apr 11, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4483?

How severe is CVE-2016-4483?

CVE-2016-4483 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.17% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4483?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-4483?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST