| Name | CVE-2021-28374 |
| Description | The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions, allowing an attacker to read user information. This may include a cleartext password in some configurations. In general, it includes the user's existence, uid and gids, home and/or Maildir directory, quota, and some type of password information (such as a hash). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2625-1 |
| Debian Bugs | 984810 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| courier-authlib (PTS) | jessie | 0.66.1-1 | fixed |
| stretch (security), stretch (lts), stretch | 0.66.4-9+deb9u1 | fixed | |
| buster | 0.69.0-2 | vulnerable | |
| bullseye | 0.71.1-2 | fixed | |
| sid, bookworm | 0.71.4-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| courier-authlib | source | jessie | 0.58-3.1 | |||
| courier-authlib | source | stretch | 0.66.4-9+deb9u1 | DLA-2625-1 | ||
| courier-authlib | source | (unstable) | 0.71.1-2 | 984810 |
[buster] - courier-authlib <no-dsa> (Minor issue)
Re-introduction of #378571 while migrating from debian/permissions to
debian/courier-authdaemon.tmpfiles in 0.66.4-2.