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Debian 9 DLA-2687-1 Critical: Prosody Authentication Risk Mitigation

debian lts
Calendar Grey June 16, 2021
Dist Debian Esm H88
The recent Prosody security patch DLA-2687-1 resolves concerns related to authentication and network access, thereby improving the reliability of Debian 9.
Two security issues have been discovered in prosody: CVE-2021-32917
Topics%20covered

Topics Covered

security advisory Debian authentication issue timing attack critical issues network access prosody

Summary

CVE-2021-32917

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.

CVE-2021-32921

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
0.9.12-2+deb9u3.

We recommend that you upgrade your prosody packages.

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

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


Severity
critical
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory Debian authentication issue timing attack critical issues network access prosody

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