| Name | CVE-2022-25235 |
| Description | xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-2935-1, DSA-5085-1 |
| Debian Bugs | 1005894 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| expat (PTS) | buster | 2.2.6-2+deb10u4 | fixed |
| buster (security) | 2.2.6-2+deb10u6 | fixed | |
| bullseye (security), bullseye | 2.2.10-2+deb11u5 | fixed | |
| bookworm, sid | 2.5.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| expat | source | stretch | 2.2.0-2+deb9u5 | DLA-2935-1 | ||
| expat | source | buster | 2.2.6-2+deb10u3 | DSA-5085-1 | ||
| expat | source | bullseye | 2.2.10-2+deb11u2 | DSA-5085-1 | ||
| expat | source | (unstable) | 2.4.5-1 | 1005894 |
https://github.com/libexpat/libexpat/pull/562
https://github.com/libexpat/libexpat/commit/ee2a5b50e7d1940ba8745715b62ceb9efd3a96da
https://github.com/libexpat/libexpat/commit/3f0a0cb644438d4d8e3294cd0b1245d0edb0c6c6
https://github.com/libexpat/libexpat/commit/c85a3025e7a1be086dc34e7559fbc543914d047f
https://github.com/libexpat/libexpat/commit/6a5510bc6b7efe743356296724e0b38300f05379