[SECURITY] [DLA 2625-1] courier-authlib security update

2021-04-1406:46:50

lists.debian.org

239

debian

courier-authlib

vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.002

Percentile

59.9%

JSON

Debian LTS Advisory DLA-2625-1 [email protected]
https://www.debian.org/lts/security/ Utkarsh Gupta
April 14, 2021 https://wiki.debian.org/LTS

Package : courier-authlib
Version : 0.66.4-9+deb9u1
CVE ID : CVE-2021-28374
Debian Bug : 984810

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).

For Debian 9 stretch, this problem has been fixed in version
0.66.4-9+deb9u1.

We recommend that you upgrade your courier-authlib packages.

For the detailed security status of courier-authlib please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/courier-authlib

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

OSVersionArchitecturePackageVersionFilename
Debian9amd64courier-authdaemon< 0.66.4-9+deb9u1courier-authdaemon_0.66.4-9+deb9u1_amd64.deb
Debian9arm64courier-authlib-ldap< 0.66.4-9+deb9u1courier-authlib-ldap_0.66.4-9+deb9u1_arm64.deb
Debian9armhfcourier-authlib-mysql< 0.66.4-9+deb9u1courier-authlib-mysql_0.66.4-9+deb9u1_armhf.deb
Debian9i386courier-authlib-ldap< 0.66.4-9+deb9u1courier-authlib-ldap_0.66.4-9+deb9u1_i386.deb
Debian9amd64courier-authlib-pipe< 0.66.4-9+deb9u1courier-authlib-pipe_0.66.4-9+deb9u1_amd64.deb
Debian9i386courier-authlib-postgresql< 0.66.4-9+deb9u1courier-authlib-postgresql_0.66.4-9+deb9u1_i386.deb
Debian9armhfcourier-authdaemon< 0.66.4-9+deb9u1courier-authdaemon_0.66.4-9+deb9u1_armhf.deb
Debian9allcourier-authlib< 0.66.4-9+deb9u1courier-authlib_0.66.4-9+deb9u1_all.deb
Debian9armhfcourier-authlib-ldap< 0.66.4-9+deb9u1courier-authlib-ldap_0.66.4-9+deb9u1_armhf.deb
Debian9armelcourier-authlib-userdb< 0.66.4-9+deb9u1courier-authlib-userdb_0.66.4-9+deb9u1_armel.deb

OS	Version	Architecture	Package	Version	Filename
Debian	9	amd64	courier-authdaemon	< 0.66.4-9+deb9u1	courier-authdaemon_0.66.4-9+deb9u1_amd64.deb
Debian	9	arm64	courier-authlib-ldap	< 0.66.4-9+deb9u1	courier-authlib-ldap_0.66.4-9+deb9u1_arm64.deb
Debian	9	armhf	courier-authlib-mysql	< 0.66.4-9+deb9u1	courier-authlib-mysql_0.66.4-9+deb9u1_armhf.deb
Debian	9	i386	courier-authlib-ldap	< 0.66.4-9+deb9u1	courier-authlib-ldap_0.66.4-9+deb9u1_i386.deb
Debian	9	amd64	courier-authlib-pipe	< 0.66.4-9+deb9u1	courier-authlib-pipe_0.66.4-9+deb9u1_amd64.deb
Debian	9	i386	courier-authlib-postgresql	< 0.66.4-9+deb9u1	courier-authlib-postgresql_0.66.4-9+deb9u1_i386.deb
Debian	9	armhf	courier-authdaemon	< 0.66.4-9+deb9u1	courier-authdaemon_0.66.4-9+deb9u1_armhf.deb
Debian	9	all	courier-authlib	< 0.66.4-9+deb9u1	courier-authlib_0.66.4-9+deb9u1_all.deb
Debian	9	armhf	courier-authlib-ldap	< 0.66.4-9+deb9u1	courier-authlib-ldap_0.66.4-9+deb9u1_armhf.deb
Debian	9	armel	courier-authlib-userdb	< 0.66.4-9+deb9u1	courier-authlib-userdb_0.66.4-9+deb9u1_armel.deb