| Name | CVE-2018-20592 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 924353 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mxml (PTS) | jessie, jessie (lts) | 2.6-2+deb8u1 | vulnerable |
| stretch | 2.10-1 | vulnerable |
| buster | 2.12-2 | vulnerable |
| bullseye | 3.2-1 | fixed |
| sid, trixie, bookworm | 3.3.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mxml | source | wheezy | (unfixed) | end-of-life | | |
| mxml | source | (unstable) | 3.0-1 | low | | 924353 |
Notes
[buster] - mxml <ignored> (Minor issue)
[stretch] - mxml <ignored> (Minor issue)
[jessie] - mxml <no-dsa> (Minor issue, only affected the mxmldoc tool)
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_1.txt
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_1.txt.err (error output)
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_2.txt
https://github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_2.txt.err (error output)
https://github.com/michaelrsweet/mxml/issues/237
upstream tagged the issue with 'wontfix' and removed mxmldoc code completely in 3.0, marking that version as fix