| Name | CVE-2025-7425 |
| Description | A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1109122 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libxslt (PTS) | bullseye | 1.1.34-4+deb11u1 | vulnerable |
| bullseye (security) | 1.1.34-4+deb11u2 | vulnerable | |
| bookworm, bookworm (security) | 1.1.35-1+deb12u2 | vulnerable | |
| trixie (security), trixie | 1.1.35-1.2+deb13u1 | vulnerable | |
| forky, sid | 1.1.43-0.2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libxslt | source | (unstable) | (unfixed) | 1109122 |
https://bugzilla.redhat.com/show_bug.cgi?id=2379274
https://gitlab.gnome.org/GNOME/libxslt/-/issues/140
While the issue is underlying in libxslt (and the CVE assigned for it), a
mitigation can be implemented in src:libxml2, cf.
https://gitlab.gnome.org/GNOME/libxslt/-/issues/140#note_2479674
and followups.
Mitigated by https://gitlab.gnome.org/GNOME/libxml2/-/commit/9de92ed78d8495527c5d7a4d0cc76c1f83768195 (2.14)
https://gitlab.gnome.org/GNOME/libxml2/-/commit/f1e1f13b766eb580a8dcc0c4e7a447346dfd862e (master)
Mitigation landed in sid in 2.14.5+dfsg-0.1. Additionally the update for libxml2 as provided
via DSA 5990-1 (for trixie: 2.12.7+dfsg+really2.9.14-2.1+deb13u1, for bookworm
2.9.14+dfsg-1.3~deb12u4) mitigate the issue in trixie and bookworm.
Potential libxslt-only solution: https://gitlab.gnome.org/GNOME/libxslt/-/issues/140#note_2513942