| Name | CVE-2019-15903 |
| Description | In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-1912-1, DSA-4530-1 |
| NVD severity | medium (attack range: remote) |
| Debian Bugs | 939394 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| expat (PTS) | jessie | 2.1.0-6+deb8u4 | vulnerable |
| jessie (security) | 2.1.0-6+deb8u6 | fixed | |
| stretch | 2.2.0-2+deb9u2 | vulnerable | |
| stretch (security) | 2.2.0-2+deb9u3 | fixed | |
| buster | 2.2.6-2 | vulnerable | |
| buster (security) | 2.2.6-2+deb10u1 | fixed | |
| bullseye, sid | 2.2.7-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| expat | source | (unstable) | 2.2.7-2 | medium | 939394 | |
| expat | source | buster | 2.2.6-2+deb10u1 | medium | DSA-4530-1 | |
| expat | source | jessie | 2.1.0-6+deb8u6 | medium | DLA-1912-1 | |
| expat | source | stretch | 2.2.0-2+deb9u3 | medium | DSA-4530-1 |
https://github.com/libexpat/libexpat/commit/c20b758c332d9a13afbbb276d30db1d183a85d43
https://github.com/libexpat/libexpat/issues/317
https://github.com/libexpat/libexpat/pull/318