An issue has been found in Mini-XML (aka mxml) 2.12. It is a stack-based buffer overflow in mxml_write_node in mxml-file.c via vectors involving a double-precision floating point number and the '<order type="real">' substring, as demonstrated by testmxml.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue has been found in Mini-XML (aka mxml) 2.12. It is a stack-based buffer overflow in     mxml_write_node in mxml-file.c via vectors involving a double-precision floating point number and the     '<order type=real>' substring, as demonstrated by testmxml. (CVE-2018-20004)

Note that Nessus relies on the presence of the package as reported by the vendor.

Update to 3.0. License has changed to ASL 2.0 + exception. See https://github.com/michaelrsweet/mxml/releases/tag/v3.0 for more info.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several stack exhaustion conditions were found in mxml that can easily crash when parsing xml files.

CVE-2016-4570

The mxmlDelete function in mxml-node.c allows remote attackers to cause a denial of service (stack consumption) via crafted xml file.

CVE-2016-4571

The mxml_write_node function in mxml-file.c allows remote attackers to cause a denial of service (stack consumption) via crafted xml file

CVE-2018-20004

A stack-based buffer overflow in mxml_write_node via vectors involving a double-precision floating point number.

For Debian 8 'Jessie', these problems have been fixed in version 2.6-2+deb8u1.

We recommend that you upgrade your mxml packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
258249	Linux Distros Unpatched Vulnerability : CVE-2018-20004	Nessus	Misc.	high
124489	Fedora 30 : mxml (2019-4182dd32eb)	Nessus	Fedora Local Security Checks	high
123049	Fedora 28 : mxml (2019-d333d01e08)	Nessus	Fedora Local Security Checks	high
121397	Debian DLA-1641-1 : mxml security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2018-20004

high

Tenable Plugins

high

high

high

high