Date:         Thu, 21 May 2009 16:39:56 -0500
Reply-To:     Troy Dawson 
Sender:       Security Errata for Scientific Linux
              
From:         Troy Dawson 
Subject:      Security ERRATA Critical: ntp on SL4.x i386/x86_64
Comments: To: "scientific-linux-errata@fnal.gov"
          

Synopsis:	Critical: ntp security update
Issue date:	2009-05-18
CVE Names:	CVE-2009-0159 CVE-2009-1252

A buffer overflow flaw was discovered in the ntpd daemon's NTPv4
authentication code. If ntpd was configured to use public key 
cryptography for NTP packet authentication, a remote attacker could use 
this flaw to send a specially-crafted request packet that could crash 
ntpd or, potentially, execute arbitrary code with the privileges of the 
"ntp" user. (CVE-2009-1252)

Note: NTP authentication is not enabled by default.

A buffer overflow flaw was found in the ntpq diagnostic command. A
malicious, remote server could send a specially-crafted reply to an ntpq
request that could crash ntpq or, potentially, execute arbitrary code 
with the privileges of the user running the ntpq command. (CVE-2009-0159)

After installing the update, the ntpd daemon will be restarted 
automatically.

SL 4.x

     SRPMS:
ntp-4.2.0.a.20040617-8.el4_7.2.src.rpm
     i386:
ntp-4.2.0.a.20040617-8.el4_7.2.i386.rpm
     x86_64:
ntp-4.2.0.a.20040617-8.el4_7.2.x86_64.rpm

-Connie Sieh
-Troy Dawson