NULL Pointer Dereference Affecting libxml2 package, versions <2.9.8-r1
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Test your applications- Snyk ID SNYK-ALPINE39-LIBXML2-339279
- published 22 Jul 2018
- disclosed 19 Jul 2018
Introduced: 19 Jul 2018
CVE-2018-14404 Open this link in a new tabHow to fix?
Upgrade Alpine:3.9 libxml2 to version 2.9.8-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Alpine.
See How to fix? for Alpine:3.9 relevant fixed versions and status.
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.
References
- https://security.netapp.com/advisory/ntap-20190719-0002/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14404
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817
- https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
- https://security-tracker.debian.org/tracker/CVE-2018-14404
- https://gitlab.gnome.org/GNOME/libxml2/issues/10
- https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
- https://access.redhat.com/errata/RHSA-2019:1543
- https://bugzilla.redhat.com/show_bug.cgi?id=1595985
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-14404
- https://usn.ubuntu.com/3739-1/
- https://usn.ubuntu.com/3739-2/