CVE-2018-20592 — Vulnetix

CVE-2018-20592 PUBLISHED

In Mini-XML (aka mxml) v2.12, there is a use-after-free in the mxmlAdd function of the mxml-node.c file. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted xml file, as demonstrated by mxmldoc.

EPSS 0.34% · 56.8th percentile

Risk Scores

EPSS Score

0.34%

56.8th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:24.04:LTS	mxml	3.3.1-1build1, 0, 3.3.1-1
Ubuntu:22.04:LTS	mxml	3.2-1, 0, 3.3-1
Ubuntu:20.04:LTS	mxml	3.1-1, 0, 2.12-2
Ubuntu:25.10	mxml	0, 3.3.1-1build1
Ubuntu:16.04:LTS	mxml	0, 2.7-1, 2.9-0ubuntu1
Ubuntu:18.04:LTS	mxml	0, 2.10-1

Exploit Intelligence

https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_1.txt.err (nist-nvd)
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_2.txt.err (nist-nvd)
https://github.com/michaelrsweet/mxml/issues/237 (circl)
FEDORA-2019-d333d01e08 (circl)
FEDORA-2019-f99619e34d (circl)

Timeline

Dec 30, 2018 CVE Published
Apr 14, 2021 EPSS Score
Jun 23, 2021 EPSS Score
Aug 24, 2021 EPSS Score
Oct 26, 2021 EPSS Score
Feb 28, 2022 EPSS Score
May 2, 2022 EPSS Score
Jul 3, 2022 EPSS Score
Sep 5, 2022 EPSS Score
Nov 6, 2022 EPSS Score
Jan 8, 2023 EPSS Score
Mar 7, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2018-20592 third-party-advisory
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_1.txt third-party-advisory
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_1.txt.err third-party-advisory
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_2.txt third-party-advisory
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_2.txt.err third-party-advisory
https://github.com/michaelrsweet/mxml/issues/237 third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2018-20592 third-party-advisory

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