Red Hat Security Advisory
Synopsis: Updated kernel packages resolve security
vulnerabilities
Advisory ID: RHSA-2004:065-01
Issue date: 2004-02-18
Updated on: 2004-02-18
Product: Red Hat Linux
Keywords: VMA privesc
Cross references:
Obsoletes: RHSA-2003:417
CVE Names: CAN-2004-0003 CAN-2004-0010 CAN-2004-0075
CAN-2004-0077
1. Topic:
Updated kernel packages that fix security vulnerabilities which
may allow local users to gain root privileges are now available.
These packages also resolve other minor issues.
2. Relevant releases/architectures:
Red Hat Linux 9 – athlon, i386, i686
3. Problem description:
The Linux kernel handles the basic functions of the operating
system.
Paul Starzetz discovered a flaw in return value checking in
mremap() in the Linux kernel versions 2.4.24 and previous that may
allow a local attacker to gain root privileges. No exploit is
currently available; however this issue is exploitable. The Common
Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
CAN-2004-0077 to this issue.
The Vicam USB driver in kernel versions prior to 2.4.25 does not
use the copy_from_user function to access userspace, which crosses
security boundaries. The Common Vulnerabilities and Exposures
project (cve.mitre.org/) has
assigned the name CAN-2004-0075 to this issue.
Arjan van de Ven discovered a flaw in ncp_lookup() in ncpfs that
could allow local privilege escalation. ncpfs is only used to allow
a system to mount volumes of NetWare servers or print to NetWare
printers. The Common Vulnerabilities and Exposures project
(cve.mitre.org/) has assigned
the name CAN-2004-0010 to this issue.
Alan Cox found issues in the R128 Direct Render Infrastructure
that could allow local privilege escalation. The Common
Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
CAN-2004-0003 to this issue.
All users are advised to upgrade to these errata packages, which
contain backported security patches that correct these issues.
Red Hat would like to thank Paul Starzetz from ISEC for
reporting the issue CAN-2004-0077.
4. Solution:
Before applying this update, make sure all previously released
errata relevant to your system have been applied.
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 directory 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.
If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the up2date
client with an updated certificate. The latest version of up2date
is available from the Red Hat FTP site and may also be downloaded
directly from the RHN website:
https://rhn.redhat.com/help/latest-up2date.pxt
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla
for more info):
113517 – RHEL 3.0 smp hang using prctl( PR_SET_PDEATHSIG
6. RPMs required:
Red Hat Linux 9:
SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/kernel-2.4.20-30.9.src.rpm
athlon:
ftp://updates.redhat.com/9/en/os/athlon/kernel-2.4.20-30.9.athlon.rpm
ftp://updates.redhat.com/9/en/os/athlon/kernel-smp-2.4.20-30.9.athlon.rpm
i386:
ftp://updates.redhat.com/9/en/os/i386/kernel-2.4.20-30.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-BOOT-2.4.20-30.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-doc-2.4.20-30.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-source-2.4.20-30.9.i386.rpm
i686:
ftp://updates.redhat.com/9/en/os/i686/kernel-2.4.20-30.9.i686.rpm
ftp://updates.redhat.com/9/en/os/i686/kernel-bigmem-2.4.20-30.9.i686.rpm
ftp://updates.redhat.com/9/en/os/i686/kernel-smp-2.4.20-30.9.i686.rpm
7. Verification:
MD5 sum Package Name
49493c8d5d9ddc2a4a9972ece04a6d8f
9/en/os/SRPMS/kernel-2.4.20-30.9.src.rpm
470b90ee4107de230f10f8a2a7d41c07
9/en/os/athlon/kernel-2.4.20-30.9.athlon.rpm
19b1e5ac305d1154272fc24f67e4b178
9/en/os/athlon/kernel-smp-2.4.20-30.9.athlon.rpm
f4d5fe1bc347ce6f4cd14f4044806a1c
9/en/os/i386/kernel-2.4.20-30.9.i386.rpm
56e1dbffc0ef2cc8b9437dac17125741
9/en/os/i386/kernel-BOOT-2.4.20-30.9.i386.rpm
4e2f8db760ab6fea751199a5a65c049c
9/en/os/i386/kernel-doc-2.4.20-30.9.i386.rpm
10b2197124f4e73546b85011b2907996
9/en/os/i386/kernel-source-2.4.20-30.9.i386.rpm
59cb85fd47dad7a60c141b6514643aa2
9/en/os/i686/kernel-2.4.20-30.9.i686.rpm
6aa14556eb3c01efcca8141269b9ec94
9/en/os/i686/kernel-bigmem-2.4.20-30.9.i686.rpm
cf3483753eaa7eb0eec8d5cef943f04a
9/en/os/i686/kernel-smp-2.4.20-30.9.i686.rpm
These packages are GPG signed by Red Hat for security. Our key
is available from https://www.redhat.com/security/keys.html
You can verify each package with the following command:
rpm –checksig -v <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:
md5sum <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0003
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0010
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0075
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0077
9. Contact:
The Red Hat security contact is <secalert@redhat.com>. More
contact details at https://www.redhat.com/solutions/security/news/contact.html
Copyright 2003 Red Hat, Inc.