Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mxml | 2.12-2 | — |
| Debian 13 | mxml | 2.12-2 | — |
| Debian 12 | mxml | 2.12-2 | — |
| Debian 8 | mxml | 2.6-2+deb8u1 | DLA-1641-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mxml | No fix yet | — |
| Ubuntu 16.04 LTS | mxml | No fix yet | — |
Advisories 1
- DLA-1641-1 mxml - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/michaelrsweet/mxml/issues/233
- [debian-lts-announce] 20190125 [SECURITY] [DLA 1641-1] mxml security update mailing-list
- https://github.com/fouzhe/security/tree/master/mxml#stack-buffer-overflow-in-function-mxml_write_node
- FEDORA-2019-d333d01e08 vendor-advisory
- FEDORA-2019-f99619e34d vendor-advisory