| Name | CVE-2016-4472 |
| Description | The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-483-1, DSA-3582-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| expat (PTS) | bullseye | 2.2.10-2+deb11u5 | fixed |
| bullseye (security) | 2.2.10-2+deb11u7 | fixed | |
| bookworm, bookworm (security) | 2.5.0-1+deb12u1 | fixed | |
| trixie, sid | 2.7.1-1 | fixed | |
| libxmltok (PTS) | bookworm, bullseye | 1.2-4 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| expat | source | wheezy | 2.1.0-1+deb7u3 | DLA-483-1 | ||
| expat | source | jessie | 2.1.0-6+deb8u2 | DSA-3582-1 | ||
| expat | source | (unstable) | 2.1.1-2 | |||
| libxmltok | source | (unstable) | (unfixed) |
https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde/tree/expat/lib/xmlparse.c?diff=a238d7ea7a715ef3850c4cbdd86aeda7077b6bbc