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Red Hat Linux RHSA-2001:045-05 Critical: Ntpd Buffer Overflow Threat

red hat
Calendar Grey April 8, 2001
Dist Redhat Esm H88
Critical advisory for Red Hat users on exploiting ntpd vulnerability requiring immediate update for server safety.
The Network Time Daemon (xntpd on Red Hat Linux 6.2 and earlier, ntpd on Red Hat Linux 7.0) does not properly check the size of a buffer used to hold incoming data from the network...

Solution

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directly *only* contains the desired RPMs.

Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

5. Bug IDs fixed ( for more info):

34813 - ntpd security hole

6. RPMs required:

Red Hat Linux 5.2:

SRPMS:


alpha:


i386:


sparc:


Red Hat Linux 6.2:

SRPMS:


alpha:


i386:


sparc:


Red Hat Linux 7.0:

SRPMS:


alpha:


i386:



7. Verification:

MD5 sum Package Name 0d3566d34cd5bc9990a15a41be99e4c7 5.2/en/os/SRPMS/xntp3-5.93-14.src.rpm aa851fdb72e9f6464e9688378617c9df 5.2/en/os/alpha/xntp3-5.93-14.alpha.rpm 176041bd0364ca91b6d7db3869c4a0a0 5.2/en/os/i386/xntp3-5.93-14.i386.rpm 9b224d8bd3640a6fbd37785c6c5d3ce2 5.2/en/os/sparc/xntp3-5.93-14.sparc.rpm a83add134f54dd4fbdcfd0cef5929b43 6.2/en/os/SRPMS/xntp3-5.93-15.src.rpm 64d936dcf1fa8fe97a12b314923ae89c 6.2/en/os/alpha/xntp3-5.93-15.alpha.rpm af43bc024a00586ef97265c7bf2e63df 6.2/en/os/i386/xntp3-5.93-15.i386.rpm 3f13de81debf2dc875d84c046596e27d 6.2/en/os/sparc/xntp3-5.93-15.sparc.rpm b7f60c57e74179913ebc2dc1da04f410 7.0/en/os/SRPMS/ntp-4.0.99k-15.src.rpm 6334b7ba31606cfe04d98967adbf3350 7.0/en/os/alpha/ntp-4.0.99k-15.alpha.rpm f67d135fd6ccadb9f36aeca4a429a9fa 7.0/en/os/i386/ntp-4.0.99k-15.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security. Our key is available at:


You can verify each package with the following command: rpm --checksig

If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg

Summary

Topics%20covered

Topics Covered

security advisory Red Hat Linux buffer overflow remote access ntpd exploit

References

BugTraq Message-ID <20010404222701.X91913@riget.scene.pl> ntp.org: Home of the Network Time Protocol Copyright(c) 2000, 2001 Red Hat, Inc. [Already at end of message] `

Package List


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2001:045-05
Issue date: 2001-04-05
Updated on: 2001-04-08
Product: Red Hat Linux
Keywords: ntpd exploit buffer overflow
Cross references:
Obsoletes:

Topic

Topics%20covered

Topics Covered

security advisory Red Hat Linux buffer overflow remote access ntpd exploit

Relevant Releases Architectures

Red Hat Linux 5.2 - alpha, i386, sparc

Red Hat Linux 6.2 - alpha, i386, sparc

Red Hat Linux 7.0 - alpha, i386

Bugs Fixed

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