yum-updatesd is vulnerable to authorization bypass attacks. The vulnerability exists as the installUpdates function in yum-cron/yum-cron.py in yum 3.4.3 and earlier does not properly check the return value of the sigCheckPkg function, which allows remote attackers to bypass the RMP package signing restriction via an unsigned package.
secunia.com/advisories/56637
www.securityfocus.com/bid/65119
yum.baseurl.org/gitweb?p=yum.git%3Ba=commitdiff%3Bh=9df69e5794
yum.baseurl.org/gitweb?p=yum.git;a=commitdiff;h=9df69e5794
access.redhat.com/errata/RHSA-2014:1004
access.redhat.com/security/cve/CVE-2014-0022
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1052440
bugzilla.redhat.com/show_bug.cgi?id=1057377
rhn.redhat.com/errata/RHSA-2014-1004.html