[arch-security] [Arch Linux Security Advisory ASA-201410-13] ejabberd: circumvention of encryption
anthraxx at archlinux.org
Mon Oct 27 20:16:00 UTC 2014
Arch Linux Security Advisory ASA-201410-13
Date : 2014-10-27
CVE-ID : CVE-2014-8760
Package : ejabberd
Type : circumvention of encryption
Remote : No
Link : https://wiki.archlinux.org/index.php/CVE-2014
The package ejabberd before version 14.07-2 allows clients to connect
with an unencrypted connection even if starttls_required is set.
Upgrade to 14.07-2.
# pacman -Syu "ejabberd>=14.07-2"
The problems have been fixed upstream  but no release version is
Disable compression ('zlib' in c2s configuration) and find affected
# ejabberdctl connected_users_info | grep 'c2s_compressed\s'
You may kick affected user sessions and they should be able to reconnect
with encryption and without compression.
It was discovered that ejabberd does not enforce the starttls_required
setting when compression is used, which causes clients to unexpectedly
establish connections without encryption.
A local user can unexpectedly connect without any encryption and send
sensitive information in plaintext to the server even if encryption was
set as required.
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