| Name | CVE-2020-25717 |
| Description | A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation. |
| 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, DSA-5015-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| samba (PTS) | buster | 2:4.9.5+dfsg-5+deb10u3 | fixed |
| buster (security) | 2:4.9.5+dfsg-5+deb10u5 | fixed |
| bullseye | 2:4.13.13+dfsg-1~deb11u5 | fixed |
| bullseye (security) | 2:4.13.13+dfsg-1~deb11u6 | fixed |
| bookworm, bookworm (security) | 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 | buster | 2:4.9.5+dfsg-5+deb10u2 | | DSA-5015-1 | |
| samba | source | bullseye | 2:4.13.13+dfsg-1~deb11u2 | | DSA-5003-1 | |
| samba | source | (unstable) | 2:4.13.14+dfsg-1 | | | |
Notes
https://bugzilla.samba.org/show_bug.cgi?id=14556
https://bugzilla.samba.org/show_bug.cgi?id=14725
https://www.samba.org/samba/security/CVE-2020-25717.html
A new parameter "min domain uid" (defaults to 1000) has been added,
which enforces that no UNIX uid below this value will be accepted.