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libxml2 vulnerabilities CVE-2015-8035 CVE-2016-5131 CVE-2017-15412 CVE-2017-18258 CVE-2018-14404 CVE-2018-14567

Description

* [CVE-2015-8035](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8035>) The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data. * [CVE-2016-5131](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5131>) Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function. * [CVE-2017-15412](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15412>) Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. * [CVE-2017-18258](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18258>) The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file. * [CVE-2018-14404](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14404>) A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application. * [CVE-2018-14567](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14567>) libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251. Impact There is no impact; F5 products are not affected by this vulnerability.


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