| Name | CVE-2025-9640 |
| Description | A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized heap memory could be written into alternate data streams. This allows an authenticated user to read residual memory content that may include sensitive data, resulting in an information disclosure vulnerability. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4384-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| samba (PTS) | bullseye | 2:4.13.13+dfsg-1~deb11u6 | vulnerable |
| bullseye (security) | 2:4.13.13+dfsg-1~deb11u7 | fixed | |
| bookworm | 2:4.17.12+dfsg-0+deb12u3 | fixed | |
| bookworm (security) | 2:4.17.12+dfsg-0+deb12u1 | vulnerable | |
| trixie | 2:4.22.6+dfsg-0+deb13u1 | fixed | |
| forky | 2:4.23.4+dfsg-1 | fixed | |
| sid | 2:4.23.5+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| samba | source | bullseye | 2:4.13.13+dfsg-1~deb11u7 | DLA-4384-1 | ||
| samba | source | bookworm | 2:4.17.12+dfsg-0+deb12u3 | |||
| samba | source | trixie | 2:4.22.6+dfsg-0+deb13u1 | |||
| samba | source | (unstable) | 2:4.23.2+dfsg-1 |
https://www.samba.org/samba/security/CVE-2025-9640.html
https://bugzilla.samba.org/show_bug.cgi?id=15885