- -------------------------------------------------------------------------
Debian LTS Advisory DLA-2687-1                [email protected]s.debian.org
https://www.debian.org/lts/security/                         Anton Gladky
June 15, 2021                                 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : prosody
Version        : 0.9.12-2+deb9u3
CVE ID         : CVE-2021-32917 CVE-2021-32921

Two security issues have been discovered in prosody:


    The proxy65 component allows open access by default, even if neither of the
    users has an XMPP account on the local server, allowing unrestricted use of
    the server's bandwidth.


    Authentication module does not use a constant-time algorithm for comparing
    certain secret strings when running under Lua 5.2 or later. This can
    potentially be used in a timing attack to reveal the contents of secret
    strings to an attacker.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your prosody packages.

For the detailed security status of prosody please refer to
its security tracker page at:

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