CVE-2016-4483
HIGHCVSS 7.5/10EPSS 6.17%
Last modified
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/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
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://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://security.gentoo.org/glsa/201701-37Third Party Advisory
- https://www.tenable.com/security/tns-2016-18Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-4483?
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.
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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