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libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade libxml2 | Aug 23, 2017 | May 18, 2017 |
| Freebsd | — | Upgrade libxml2 | Dec 14, 2017 | Dec 13, 2017 |
| Gentoo Linux | — | Upgrade dev-libs/libxml2. | Nov 13, 2017 | May 18, 2017 |
| Huawei Euleros 2_0_sp2 | — | Upgrade libxml2-pythonUpgrade libxml2Upgrade libxml2-devel | Dec 4, 2019 | May 18, 2017 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libxml2-develUpgrade libxml2Upgrade libxml2-python | Dec 18, 2019 | May 18, 2017 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libxml2-pythonUpgrade libxml2-develUpgrade libxml2 | Nov 19, 2019 | May 18, 2017 |
| Oracle Solaris | — | Upgrade library/libxml2 to version 2.9.5-0.175.3.27.0.1.0 on Solaris 11.3Upgrade library/python/libxml2-34 to version 2.9.5-0.175.3.27.0.1.0 on Solaris 11.3Upgrade library/python/libxml2-27 to version 2.9.5-0.175.3.27.0.1.0 on Solaris 11.3 | Jan 19, 2021 | May 18, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 15, 2017 |
| Suse | — | Upgrade python-libxml2Upgrade libxml2Upgrade libxml2-toolsUpgrade python3-libxml2-pythonUpgrade libxml2-32bitUpgrade libxml2-devel-32bitUpgrade sles12sp1-docker-imageUpgrade libxml2-x86Upgrade libxml2-docUpgrade sles12sp2-docker-imageUpgrade sles12-docker-imageUpgrade libxml2-2-32bitUpgrade python2-libxml2-pythonUpgrade libxml2-2Upgrade libxml2-develUpgrade libxml2-python | May 31, 2017 | May 18, 2017 |
| Ubuntu | — | Upgrade libxml2 | Sep 19, 2017 | May 18, 2017 |
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