| Name | CVE-2020-25721 |
| Description | Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5003-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| samba (PTS) | jessie, jessie (lts) | 2:4.2.14+dfsg-0+deb8u15 | vulnerable |
| stretch (security), stretch (lts), stretch | 2:4.5.16+dfsg-1+deb9u4 | vulnerable |
| buster | 2:4.9.5+dfsg-5+deb10u3 | vulnerable |
| buster (security) | 2:4.9.5+dfsg-5+deb10u4 | vulnerable |
| bullseye | 2:4.13.13+dfsg-1~deb11u5 | fixed |
| bullseye (security) | 2:4.13.13+dfsg-1~deb11u6 | fixed |
| bookworm (security), bookworm | 2:4.17.12+dfsg-0+deb12u1 | fixed |
| trixie | 2:4.19.5+dfsg-1 | fixed |
| sid | 2:4.19.6+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~deb11u2 | | DSA-5003-1 | |
| samba | source | (unstable) | 2:4.13.14+dfsg-1 | | | |
Notes
[buster] - samba <ignored> (Intrusive backport; affects Samba as AD DC)
https://bugzilla.samba.org/show_bug.cgi?id=14725
https://bugzilla.samba.org/show_bug.cgi?id=14557
https://www.samba.org/samba/security/CVE-2020-25721.html
[stretch] - samba <ignored> (Intrusive backport; affects Samba as AD DC; EOLed)
[jessie] - samba <ignored> (Intrusive backport; affects Samba as AD DC; EOLed)