An information disclosure vulnerability was found in the buf.pl core script for irssi. Other users on the same machine may be able to retrieve the whole window contents after /UPGRADE when the buf.pl script is loaded. Furthermore, this dump of the windows contents is never removed afterwards.
Created irssi tracking bugs for this issue:
Affects: fedora-all [bug 1379272]
Affects: epel-5 [bug 1379273]
(In reply to Jaroslav Škarvada from comment #2)
In Fedora 23 - 26 and EPEL-5.
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.