Arch Linux Security Advisory ASA-201706-4

Severity: High
Date : 2017-06-05
CVE-ID : CVE-2016-1037
Package : gajim
Type : information disclosure
Remote : Yes
Link : https://security.archlinux.org/AVG-284

Summary

The package gajim before version 0.16.8-1 is vulnerable to information
disclosure.

Resolution

Upgrade to 0.16.8-1.

pacman -Syu “gajim>=0.16.8-1”

The problem has been fixed upstream in version 0.16.8.

Workaround

None.

Description

Gajim through 0.16.7 unconditionally implements the “XEP-0146: Remote
Controlling Clients” extension. This can be abused by malicious XMPP
servers to, for example, extract plaintext from OTR encrypted sessions.

Impact

A malicious attacker can extract user session data by leveraging the
XEP-0146 (remote controlling clients) feature of the XMPP protocol,
which is enabled by default.

References

https://dev.gajim.org/gajim/gajim/issues/8378
https://dev.gajim.org/gajim/gajim/commit/cb65cfc5aed9efe05208ebbb7fb2d41fcf7253cc
https://security.archlinux.org/CVE-2016-1037