Red Hat Network has determined that the following advisory is applicable to
one or more of the systems you have registered:
Complete information about this errata can be found at the following location:
https://rhn.redhat.com/network/errat...s.pxt?eid=1250
Security Advisory - RHSA-2002:196-09
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Summary:
Updated xinetd packages fix denial of service vulnerability
Xinetd contains a denial-of-service (DoS) vulnerability.
Description:
Xinetd is a secure replacement for inetd, the Internet services daemon.
Versions 2.3.4 through 2.3.7 of Xinetd leak file descriptors for the signal
pipe to services that are launched by xinetd. This could allow an attacker
to execute a DoS attack via the pipe.
Red Hat Linux 7.3 shipped with xinetd version 2.3.4 and is therefore
vulnerable to this issue. All users are advised to upgrade to the errata
packages containing xinetd version 2.3.9 which is not vulnerable to this issue.
This issue was discovered by Solar Designer.
References:
http://www.xinetd.org/
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Taking Action
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You may address the issues outlined in this advisory in two ways:
- select your server name by clicking on its name from the list
available at the following location, and then schedule an
errata update for it:
https://rhn.redhat.com/network/syste...ystem_list.pxt
- run the Update Agent on each affected server.
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Changing Notification Preferences
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To enable/disable your Errata Alert preferences globally please log in to RHN
and navigate from "Your RHN" / "Your Account" to the "Preferences" tab.
URL:
https://rhn.redhat.com/network/my_account/my_prefs.pxt
You can also enable/disable notification on a per system basis by selecting an
individual system from the "Systems List". From the individual system view
click the "Details" tab.
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Affected Systems
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According to our records, this errata may apply to one or more of the
systems that you've profiled with Red Hat Network. To see precisely which
systems are affected, please go to:
https://rhn.redhat.com/network/errat...d.pxt?eid=1250
