CVE-2016-4447
UnknownEPSS 13.62%
Last modified
CVE-2016-4447 is a vulnerability of currently unknown severity. The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.. EPSS estimates a 13.62% chance of exploitation in the next 30 days.
Description
The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hp | Icewall Federation Agent | 3.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 15.10 |
| Canonical | Ubuntu Linux | 16.04 |
| Debian | Debian Linux | 7.0 |
| Debian | Debian Linux | 8.0 |
| Oracle | Vm Server | 3.3 |
| Oracle | Vm Server | 3.4 |
| Apple | Itunes | 12.4.1 |
| Apple | Iphone Os | <= 9.3.2 |
| Apple | Mac Os X | <= 10.11.5 |
| Apple | Tvos | <= 9.2.1 |
| Apple | Watchos | <= 2.2.1 |
| Xmlsoft | Libxml2 | <= 2.9.3 |
| Mcafee | Web Gateway | >= 7.5.0.0, <= 7.5.2.10 |
| Mcafee | Web Gateway | >= 7.6.0.0, <= 7.6.2.3 |
References
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.htmlMailing List, Not Applicable
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/25/2Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
- http://www.securityfocus.com/bid/90864Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036348Third Party Advisory, VDB Entry
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722Exploit, Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2994-1Third Party Advisory
- http://xmlsoft.org/news.htmlRelease Notes, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2016:1292Third Party Advisory
- https://git.gnome.org/browse/libxml2/commit/?id=00906759053986b8079985644172085f74331f83Patch, Third Party Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10170Patch, Third Party Advisory
- https://support.apple.com/HT206899Third Party Advisory
- https://support.apple.com/HT206901Third Party Advisory
- https://support.apple.com/HT206902Third Party Advisory
- https://support.apple.com/HT206903Third Party Advisory
- https://support.apple.com/HT206904Third Party Advisory
- https://support.apple.com/HT206905Third Party Advisory
- https://www.debian.org/security/2016/dsa-3593Third Party Advisory
- https://www.tenable.com/security/tns-2016-18Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.htmlMailing List, Not Applicable
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/25/2Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
- http://www.securityfocus.com/bid/90864Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036348Third Party Advisory, VDB Entry
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722Exploit, Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2994-1Third Party Advisory
- http://xmlsoft.org/news.htmlRelease Notes, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2016:1292Third Party Advisory
- https://git.gnome.org/browse/libxml2/commit/?id=00906759053986b8079985644172085f74331f83Patch, Third Party Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10170Patch, Third Party Advisory
- https://support.apple.com/HT206899Third Party Advisory
- https://support.apple.com/HT206901Third Party Advisory
- https://support.apple.com/HT206902Third Party Advisory
- https://support.apple.com/HT206903Third Party Advisory
- https://support.apple.com/HT206904Third Party Advisory
- https://support.apple.com/HT206905Third Party Advisory
- https://www.debian.org/security/2016/dsa-3593Third Party Advisory
- https://www.tenable.com/security/tns-2016-18Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-4447?
The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.
How severe is CVE-2016-4447?
Severity scoring for CVE-2016-4447 is pending analysis. The EPSS model estimates a 13.62% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4447?
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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