RHSA-2005:092-01: Important: kernel security update
Posted on: 02/18/2005 01:15 PM

A new kernel update is available for Red Hat Enterprise Linux 4

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Red Hat Security Advisory

Synopsis: Important: kernel security update
Advisory ID: RHSA-2005:092-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-092.html
Issue date: 2005-02-18
Updated on: 2005-02-18
Product: Red Hat Enterprise Linux
Keywords: nahant kernel security errata
CVE Names: CAN-2004-1056 CAN-2004-1137 CAN-2004-1235 CAN-2005-0001 CAN-2005-0090 CAN-2005-0091 CAN-2005-0092 CAN-2005-0176 CAN-2005-0177 CAN-2005-0178 CAN-2005-0179 CAN-2005-0180 CAN-2005-0204
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1. Summary:

Updated kernel packages that fix several security issues are now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i686, ia64, noarch, ppc64, ppc64iseries, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i686, noarch, x86_64
Red Hat Enterprise Linux ES version 4 - i686, ia64, noarch, x86_64
Red Hat Enterprise Linux WS version 4 - i686, ia64, noarch, x86_64

3. Problem description:

The Linux kernel handles the basic functions of the operating system.

This advisory includes fixes for several security issues:

iSEC Security Research discovered multiple vulnerabilities in the IGMP functionality. These flaws could allow a local user to cause a denial of service (crash) or potentially gain privileges. Where multicast applications are being used on a system, these flaws may also allow remote users to cause a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1137 to this issue.

iSEC Security Research discovered a flaw in the page fault handler code that could lead to local users gaining elevated (root) privileges on multiprocessor machines. (CAN-2005-0001)

iSEC Security Research discovered a VMA handling flaw in the uselib(2) system call of the Linux kernel. A local user could make use of this flaw to gain elevated (root) privileges. (CAN-2004-1235)

A flaw affecting the OUTS instruction on the AMD64 and Intel EM64T architecture was discovered. A local user could use this flaw to write to privileged IO ports. (CAN-2005-0204)

The Direct Rendering Manager (DRM) driver in Linux kernel 2.6 does not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) or possibly modify the video output. (CAN-2004-1056)

OGAWA Hirofumi discovered incorrect tables sizes being used in the filesystem Native Language Support ASCII translation table. This could lead to a denial of service (system crash). (CAN-2005-0177)

Michael Kerrisk discovered a flaw in the 2.6.9 kernel which allows users to unlock arbitrary shared memory segments. This flaw could lead to applications not behaving as expected. (CAN-2005-0176)

Improvements in the POSIX signal and tty standards compliance exposed a race condition. This flaw can be triggered accidentally by threaded applications or deliberately by a malicious user and can result in a denial of service (crash) or in occasional cases give access to a small random chunk of kernel memory. (CAN-2005-0178)

The PaX team discovered a flaw in mlockall introduced in the 2.6.9 kernel. An unprivileged user could use this flaw to cause a denial of service (CPU and memory consumption or crash). (CAN-2005-0179)

Brad Spengler discovered multiple flaws in sg_scsi_ioctl in the 2.6 kernel. An unprivileged user may be able to use this flaw to cause a denial of service (crash) or possibly other actions. (CAN-2005-0180)

Kirill Korotaev discovered a missing access check regression in the Red Hat Enterprise Linux 4 kernel 4GB/4GB split patch. On systems using the hugemem kernel, a local unprivileged user could use this flaw to cause a denial of service (crash). (CAN-2005-0090)

A flaw in the Red Hat Enterprise Linux 4 kernel 4GB/4GB split patch can allow syscalls to read and write arbitrary kernel memory. On systems using the hugemem kernel, a local unprivileged user could use this flaw to gain privileges. (CAN-2005-0091)

An additional flaw in the Red Hat Enterprise Linux 4 kernel 4GB/4GB split patch was discovered. On x86 systems using the hugemem kernel, a local unprivileged user may be able to use this flaw to cause a denial of service (crash). (CAN-2005-0092)

All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed (http://bugzilla.redhat.com/):

139436 - Kernel does not export get_sb_pseudo()
144471 - CAN-2005-0176 unlock someone elses ipc memory
146095 - CAN-2005-0177 nls_ascii incorrect table size
146101 - CAN-2005-0178 tty/setsid race
141390 - Harmless yet annoying parted message about using deprecated SCSI ioctl
146083 - 20041212 Clear ebp on sysenter return
144412 - CAN-2005-0001 page fault @ SMP privilege escalation
142670 - CAN-2004-1137 IGMP flaws
144131 - CAN-2005-0090 4GB split DoS
144658 - CAN-2005-0091 4g4g PROT_NONE fix (CAN-2005-0092)
144136 - CAN-2004-1235 isec.pl do_brk() privilege escalation
144391 - CAN-2004-1056 insufficient locking checks in DRM code
144528 - CAN-2005-0179 RLIMIT_MEMLOCK bypass and (2.6) unprivileged user DoS
144532 - random poolsize sysctl handler integer overflow
144522 - CAN-2005-0180 2.6 scsi ioctl integer overflow and information leak

6. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/kernel-2.6.9-5.0.3.EL.src.rpm
410c49d04b3b8cf9a2c1130096982f9a kernel-2.6.9-5.0.3.EL.src.rpm

i686:
01f51a962183d419fe8a2ecf6cb561a1 kernel-2.6.9-5.0.3.EL.i686.rpm
3fad66e2d75c44e4fd94f9eb84034986 kernel-devel-2.6.9-5.0.3.EL.i686.rpm
f09d1f49812c9218b89cf0cf487cc1de kernel-hugemem-2.6.9-5.0.3.EL.i686.rpm
6e4d734755067abe92a365d13b2f2e2b kernel-hugemem-devel-2.6.9-5.0.3.EL.i686.rpm
474806e4323053105d958ca722d4d03c kernel-smp-2.6.9-5.0.3.EL.i686.rpm
e94313c04ffe8780b01cb070e97fae89 kernel-smp-devel-2.6.9-5.0.3.EL.i686.rpm

ia64:
59f8eac832cf916f5e39aec276c4701e kernel-2.6.9-5.0.3.EL.ia64.rpm
df40e96eda8774eeafff8b9049e2a130 kernel-devel-2.6.9-5.0.3.EL.ia64.rpm

noarch:
8a47fc40c6ee9edb36379830dd25e8b6 kernel-doc-2.6.9-5.0.3.EL.noarch.rpm

ppc64:
c1d102a9d0ebc3b14b9fb234b7ad6c71 kernel-2.6.9-5.0.3.EL.ppc64.rpm
cc5518c843849f4dc8bb63bf5ea8f78f kernel-devel-2.6.9-5.0.3.EL.ppc64.rpm

ppc64iseries:
9a72c2b7b88fb0adccbe673b7cbe48cb kernel-2.6.9-5.0.3.EL.ppc64iseries.rpm
5e83f4285d7c6db08c8c8c848a1115b8 kernel-devel-2.6.9-5.0.3.EL.ppc64iseries.rpm

s390:
05f40027c7f763cf9cfa7a2c85b33e5d kernel-2.6.9-5.0.3.EL.s390.rpm
620deab947a69c3441b8d99b2e7ac8d1 kernel-devel-2.6.9-5.0.3.EL.s390.rpm

s390x:
a9c65e57550e2f17bc0b214eb826c0d4 kernel-2.6.9-5.0.3.EL.s390x.rpm
b7c7b8103dbc691ca1ba7e9623157fd6 kernel-devel-2.6.9-5.0.3.EL.s390x.rpm

x86_64:
ef50566b246b62f8ab06beca078f82f8 kernel-2.6.9-5.0.3.EL.x86_64.rpm
3fda2109ae4d02fedd1b94e6b0bb0169 kernel-devel-2.6.9-5.0.3.EL.x86_64.rpm
61df8eb584e32c495b3a119ff37c6601 kernel-smp-2.6.9-5.0.3.EL.x86_64.rpm
0102536cb72ffa87dacd953eaef04a3b kernel-smp-devel-2.6.9-5.0.3.EL.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/kernel-2.6.9-5.0.3.EL.src.rpm
410c49d04b3b8cf9a2c1130096982f9a kernel-2.6.9-5.0.3.EL.src.rpm

i686:
01f51a962183d419fe8a2ecf6cb561a1 kernel-2.6.9-5.0.3.EL.i686.rpm
3fad66e2d75c44e4fd94f9eb84034986 kernel-devel-2.6.9-5.0.3.EL.i686.rpm
f09d1f49812c9218b89cf0cf487cc1de kernel-hugemem-2.6.9-5.0.3.EL.i686.rpm
6e4d734755067abe92a365d13b2f2e2b kernel-hugemem-devel-2.6.9-5.0.3.EL.i686.rpm
474806e4323053105d958ca722d4d03c kernel-smp-2.6.9-5.0.3.EL.i686.rpm
e94313c04ffe8780b01cb070e97fae89 kernel-smp-devel-2.6.9-5.0.3.EL.i686.rpm

noarch:
8a47fc40c6ee9edb36379830dd25e8b6 kernel-doc-2.6.9-5.0.3.EL.noarch.rpm

x86_64:
ef50566b246b62f8ab06beca078f82f8 kernel-2.6.9-5.0.3.EL.x86_64.rpm
3fda2109ae4d02fedd1b94e6b0bb0169 kernel-devel-2.6.9-5.0.3.EL.x86_64.rpm
61df8eb584e32c495b3a119ff37c6601 kernel-smp-2.6.9-5.0.3.EL.x86_64.rpm
0102536cb72ffa87dacd953eaef04a3b kernel-smp-devel-2.6.9-5.0.3.EL.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/kernel-2.6.9-5.0.3.EL.src.rpm
410c49d04b3b8cf9a2c1130096982f9a kernel-2.6.9-5.0.3.EL.src.rpm

i686:
01f51a962183d419fe8a2ecf6cb561a1 kernel-2.6.9-5.0.3.EL.i686.rpm
3fad66e2d75c44e4fd94f9eb84034986 kernel-devel-2.6.9-5.0.3.EL.i686.rpm
f09d1f49812c9218b89cf0cf487cc1de kernel-hugemem-2.6.9-5.0.3.EL.i686.rpm
6e4d734755067abe92a365d13b2f2e2b kernel-hugemem-devel-2.6.9-5.0.3.EL.i686.rpm
474806e4323053105d958ca722d4d03c kernel-smp-2.6.9-5.0.3.EL.i686.rpm
e94313c04ffe8780b01cb070e97fae89 kernel-smp-devel-2.6.9-5.0.3.EL.i686.rpm

ia64:
59f8eac832cf916f5e39aec276c4701e kernel-2.6.9-5.0.3.EL.ia64.rpm
df40e96eda8774eeafff8b9049e2a130 kernel-devel-2.6.9-5.0.3.EL.ia64.rpm

noarch:
8a47fc40c6ee9edb36379830dd25e8b6 kernel-doc-2.6.9-5.0.3.EL.noarch.rpm

x86_64:
ef50566b246b62f8ab06beca078f82f8 kernel-2.6.9-5.0.3.EL.x86_64.rpm
3fda2109ae4d02fedd1b94e6b0bb0169 kernel-devel-2.6.9-5.0.3.EL.x86_64.rpm
61df8eb584e32c495b3a119ff37c6601 kernel-smp-2.6.9-5.0.3.EL.x86_64.rpm
0102536cb72ffa87dacd953eaef04a3b kernel-smp-devel-2.6.9-5.0.3.EL.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/kernel-2.6.9-5.0.3.EL.src.rpm
410c49d04b3b8cf9a2c1130096982f9a kernel-2.6.9-5.0.3.EL.src.rpm

i686:
01f51a962183d419fe8a2ecf6cb561a1 kernel-2.6.9-5.0.3.EL.i686.rpm
3fad66e2d75c44e4fd94f9eb84034986 kernel-devel-2.6.9-5.0.3.EL.i686.rpm
f09d1f49812c9218b89cf0cf487cc1de kernel-hugemem-2.6.9-5.0.3.EL.i686.rpm
6e4d734755067abe92a365d13b2f2e2b kernel-hugemem-devel-2.6.9-5.0.3.EL.i686.rpm
474806e4323053105d958ca722d4d03c kernel-smp-2.6.9-5.0.3.EL.i686.rpm
e94313c04ffe8780b01cb070e97fae89 kernel-smp-devel-2.6.9-5.0.3.EL.i686.rpm

ia64:
59f8eac832cf916f5e39aec276c4701e kernel-2.6.9-5.0.3.EL.ia64.rpm
df40e96eda8774eeafff8b9049e2a130 kernel-devel-2.6.9-5.0.3.EL.ia64.rpm

noarch:
8a47fc40c6ee9edb36379830dd25e8b6 kernel-doc-2.6.9-5.0.3.EL.noarch.rpm

x86_64:
ef50566b246b62f8ab06beca078f82f8 kernel-2.6.9-5.0.3.EL.x86_64.rpm
3fda2109ae4d02fedd1b94e6b0bb0169 kernel-devel-2.6.9-5.0.3.EL.x86_64.rpm
61df8eb584e32c495b3a119ff37c6601 kernel-smp-2.6.9-5.0.3.EL.x86_64.rpm
0102536cb72ffa87dacd953eaef04a3b kernel-smp-devel-2.6.9-5.0.3.EL.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://www.isec.pl/vulnerabilities/isec-0018-igmp.txt
http://www.isec.pl/vulnerabilities/isec-0021-uselib.txt
http://www.isec.pl/vulnerabilities/isec-0022-pagefault.txt
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1056
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1137
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1235
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0001
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0090
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0091
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0092
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0176
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0177
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0178
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0179
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0180
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0204

8. Contact:

The Red Hat security contact is secalert@redhat.com. More contact details at https://www.redhat.com/security/team/contact/

Copyright 2005 Red Hat, Inc.


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