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The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux | — | Upgrade libxml2 | Jul 14, 2016 | May 17, 2016 |
| Centos_linux | — | Upgrade libxml2Upgrade libxml2-develUpgrade libxml2-pythonUpgrade libxml2-static | Jul 22, 2016 | May 17, 2016 |
| Debian | — | Upgrade libxml2 | Jun 3, 2016 | May 17, 2016 |
| F5 Big Ip | — | — | Feb 16, 2017 | May 17, 2016 |
| Freebsd | — | Upgrade libxml2 | Dec 10, 2025 | Aug 28, 2016 |
| Gentoo Linux | — | Upgrade dev-libs/libxml2. | Oct 30, 2017 | May 17, 2016 |
| Oracle Solaris | — | Upgrade library/python/libxml2-26 to version 2.9.4-0.175.3.11.0.4.0 on Solaris 11.3Upgrade library/python/libxsl-26 to version 1.1.28-0.175.3.11.0.4.0 on Solaris 11.3Upgrade library/python/libxml2-34 to version 2.9.4-0.175.3.11.0.4.0 on Solaris 11.3Upgrade library/libxml2 to version 2.9.4-0.175.3.11.0.4.0 on Solaris 11.3Upgrade library/libxslt to version 1.1.28-0.175.3.11.0.4.0 on Solaris 11.3Upgrade library/python/libxml2-27 to version 2.9.4-0.175.3.11.0.4.0 on Solaris 11.3Upgrade library/python/libxsl-27 to version 1.1.28-0.175.3.11.0.4.0 on Solaris 11.3 | May 29, 2017 | May 17, 2016 |
| Oracle_linux | — | Upgrade libxml2-staticUpgrade libxml2Upgrade libxml2-pythonUpgrade libxml2-devel | Jun 23, 2016 | May 17, 2016 |
| Redhat_linux | — | No solution existsUpgrade libxml2-debuginfoUpgrade libxml2-develUpgrade libxml2-staticUpgrade libxml2-pythonUpgrade libxml2 | Jul 29, 2016 | May 17, 2016 |
| Suse | — | Upgrade libxml2-docUpgrade libxml2-2-32bitUpgrade python-libxml2Upgrade libxml2-pythonUpgrade sles12sp1-docker-imageUpgrade python3-libxml2-pythonUpgrade libxml2-devel-32bitUpgrade libxml2-develUpgrade libxml2Upgrade sles12-docker-imageUpgrade libxml2-2Upgrade libxml2-toolsUpgrade libxml2-x86Upgrade libxml2-32bitUpgrade python2-libxml2-python | May 31, 2016 | May 17, 2016 |
| Ubuntu | — | Upgrade libxml2 | Jun 6, 2016 | May 17, 2016 |
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