[17255] in bugtraq
[RHSA-2000:087-02] Potential security problems in ping fixed.
daemon@ATHENA.MIT.EDU (bugzilla@REDHAT.COM)
Wed Oct 18 14:26:37 2000
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Date: Wed, 18 Oct 2000 12:03:00 -0400
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Red Hat, Inc. Security Advisory
Synopsis: Potential security problems in ping fixed.
Advisory ID: RHSA-2000:087-02
Issue date: 2000-10-17
Updated on: 2000-10-18
Product: Red Hat Linux
Keywords: ping buffer overflows
Cross references: N/A
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1. Topic:
N/A
2. Relevant releases/architectures:
Red Hat Linux 6.2 - i386, alpha, sparc
Red Hat Linux 7.0 - i386
Red Hat Linux 7.0J - i386
3. Problem description:
Several problems in ping are fixed:
1) Root privileges are dropped after acquiring a raw socket.
2) An 8 byte overflow of a static buffer "outpack" is prevented.
3) An overflow of a static buffer "buf" is prevented.
A non-exploitable root only segfault is fixed as well.
4. Solution:
For each RPM for your particular architecture, run:
rpm -Fvh [filename]
where filename is the name of the RPM.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
18611 - Unfortunate regression in "ping" security
16677 - "ping -c 1 -s 65690 localhost" segfaults
6. RPMs required:
Red Hat Linux 6.2:
alpha:
ftp://updates.redhat.com/6.2/alpha/iputils-20001010-1.6x.alpha.rpm
sparc:
ftp://updates.redhat.com/6.2/sparc/iputils-20001010-1.6x.sparc.rpm
i386:
ftp://updates.redhat.com/6.2/i386/iputils-20001010-1.6x.i386.rpm
sources:
ftp://updates.redhat.com/6.2/SRPMS/iputils-20001010-1.6x.src.rpm
Red Hat Linux 7.0:
i386:
ftp://updates.redhat.com/7.0/i386/iputils-20001010-1.i386.rpm
sources:
ftp://updates.redhat.com/7.0/SRPMS/iputils-20001010-1.src.rpm
7. Verification:
MD5 sum Package Name
--------------------------------------------------------------------------
e4b1ca9fbebe4dfa6e37eba5a48d307f 6.2/SRPMS/iputils-20001010-1.6x.src.rpm
6904ba7f8502fb009002cd96645f0539 6.2/alpha/iputils-20001010-1.6x.alpha.rpm
ce5de156e02e5e8e010a344e8c0cdc34 6.2/i386/iputils-20001010-1.6x.i386.rpm
11c046097bfb8c3fa62635aa531edfeb 6.2/sparc/iputils-20001010-1.6x.sparc.rpm
7bb083f0624eafd1a3f2038ff740789a 7.0/SRPMS/iputils-20001010-1.src.rpm
1973d87e9f0b685991ab4ffba1a7d257 7.0/i386/iputils-20001010-1.i386.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
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 <filename>
8. References:
N/A
Copyright(c) 2000 Red Hat, Inc.
