HIGH 7.5
GHSA-6qvp-r6r3-9p7h
Nokogiri NULL Pointer Dereference
Details
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.
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Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-14404 [ADVISORY]
- https://github.com/sparklemotion/nokogiri/issues/1785 [WEB]
- https://access.redhat.com/errata/RHSA-2019:1543 [WEB]
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817 [WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=1595985 [WEB]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2018-14404.yml [WEB]
- https://gitlab.gnome.org/GNOME/libxml2/issues/10 [WEB]
- https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html [WEB]
- https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html [WEB]
- https://security.netapp.com/advisory/ntap-20190719-0002 [WEB]
- https://usn.ubuntu.com/3739-1 [WEB]
- https://usn.ubuntu.com/3739-2 [WEB]