parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Apple Osx Apache | — | Upgrade macOS to the latest versionApply OS X security update 2015-006 | Aug 28, 2015 | Nov 4, 2014 |
| Apple Osx Libxml2 | — | Upgrade macOS to the latest versionApply OS X security update 2015-006 | Mar 29, 2016 | Nov 4, 2014 |
| Centos_linux | — | Upgrade libxml2-staticUpgrade libxml2-pythonUpgrade libxml2-develUpgrade libxml2 | Dec 1, 2016 | Nov 4, 2014 |
| Debian | — | Upgrade libxml2 | Jul 30, 2024 | Nov 4, 2014 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Sep 16, 2015 |
| Freebsd | — | Upgrade libxml2Upgrade linux-c6-libxml2Upgrade linux-f10-libxml2 | Dec 10, 2025 | Oct 18, 2014 |
| Gentoo Linux | — | Upgrade dev-libs/libxml2. | Oct 30, 2017 | Nov 4, 2014 |
| Oracle Solaris | — | Upgrade library/python-2/libxml2-26 to version 2.9.1-0.175.2.6.0.3.0 on Solaris 11.2Upgrade library/python/tkinter-27 to version 2.7.8-0.175.2.6.0.2.0 on Solaris 11.2Upgrade library/libxml2 to version 2.9.2-0.175.2.6.0.3.0 on Solaris 11.2Upgrade runtime/python-27 to version 2.7.8-0.175.2.6.0.2.0 on Solaris 11.2Upgrade runtime/python-26 to version 2.6.8-0.175.2.6.0.2.0 on Solaris 11.2Upgrade runtime/python-27/tests to version 2.7.8-0.175.2.6.0.2.0 on Solaris 11.2Upgrade library/python-2/libxml2-27 to version 2.9.1-0.175.2.6.0.3.0 on Solaris 11.2 | May 29, 2017 | Nov 4, 2014 |
| Oracle_linux | — | Upgrade libxml2-staticUpgrade libxml2Upgrade libxml2-pythonUpgrade libxml2-devel | Oct 16, 2024 | Nov 4, 2014 |
| Suse | — | Upgrade libxml2-pythonUpgrade libxml2-develUpgrade python3-libxml2-pythonUpgrade libxml2-toolsUpgrade python-libxml2Upgrade libxml2-2Upgrade libxml2Upgrade libxml2-32bitUpgrade libxml2-2-32bitUpgrade libxml2-devel-32bitUpgrade libxml2-docUpgrade libxml2-x86 | Dec 18, 2015 | Nov 4, 2014 |
| Ubuntu | — | Upgrade libxml2 | Nov 8, 2024 | Nov 4, 2014 |
| Vmsa 2015 0001 | — | Upgrade VMware ESXi 5.5 to build number 2352327Upgrade VMware ESXi 5.0 to build number 2486588Upgrade VMware ESXi 5.1 to build number 2575044 | Oct 28, 2015 | Nov 4, 2014 |
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