Home / mailings [RHSA-2008:0973-03] Important: kernel security and bug fix update
Posted on 17 December 2008
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Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2008:0973-03
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0973.html
Issue date: 2008-12-16
CVE Names: CVE-2008-4210 CVE-2008-3275 CVE-2008-0598
CVE-2008-2136 CVE-2008-2812 CVE-2007-6063
CVE-2008-3525
=====================================================================
1. Summary:
Updated kernel packages that resolve several security issues and fix
various bugs are now available for Red Hat Enterprise Linux 3.
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 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update addresses the following security issues:
* Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and
64-bit emulation. This could allow a local, unprivileged user to prepare
and run a specially-crafted binary which would use this deficiency to leak
uninitialized and potentially sensitive data. (CVE-2008-0598, Important)
* a possible kernel memory leak was found in the Linux kernel Simple
Internet Transition (SIT) INET6 implementation. This could allow a local,
unprivileged user to cause a denial of service. (CVE-2008-2136, Important)
* missing capability checks were found in the SBNI WAN driver which could
allow a local user to bypass intended capability restrictions.
(CVE-2008-3525, Important)
* the do_truncate() and generic_file_splice_write() functions did not clear
the setuid and setgid bits. This could allow a local, unprivileged user to
obtain access to privileged information. (CVE-2008-4210, Important)
* a buffer overflow flaw was found in Integrated Services Digital Network
(ISDN) subsystem. A local, unprivileged user could use this flaw to cause a
denial of service. (CVE-2007-6063, Moderate)
* multiple NULL pointer dereferences were found in various Linux kernel
network drivers. These drivers were missing checks for terminal validity,
which could allow privilege escalation. (CVE-2008-2812, Moderate)
* a deficiency was found in the Linux kernel virtual filesystem (VFS)
implementation. This could allow a local, unprivileged user to attempt file
creation within deleted directories, possibly causing a denial of service.
(CVE-2008-3275, Moderate)
This update also fixes the following bugs:
* the incorrect kunmap function was used in nfs_xdr_readlinkres. kunmap()
was used where kunmap_atomic() should have been. As a consequence, if an
NFSv2 or NFSv3 server exported a volume containing a symlink which included
a path equal to or longer than the local system's PATH_MAX, accessing the
link caused a kernel oops. This has been corrected in this update.
* mptctl_gettargetinfo did not check if pIoc3 was NULL before using it as a
pointer. This caused a kernel panic in mptctl_gettargetinfo in some
circumstances. A check has been added which prevents this.
* lost tick compensation code in the timer interrupt routine triggered
without apparent cause. When running as a fully-virtualized client, this
spurious triggering caused the 64-bit version of Red Hat Enterprise Linux 3
to present highly inaccurate times. With this update the lost tick
compensation code is turned off when the operating system is running as a
fully-virtualized client under Xen or VMWare®.
All Red Hat Enterprise Linux 3 users should install this updated kernel
which addresses these vulnerabilities and fixes these bugs.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
392101 - CVE-2007-6063 Linux Kernel isdn_net_setcfg buffer overflow
433938 - CVE-2008-0598 kernel: linux x86_64 ia32 emulation leaks uninitialized data
438758 - wrong kunmap call in nfs_xdr_readlinkres
446031 - CVE-2008-2136 kernel: sit memory leak
453419 - CVE-2008-2812 kernel: NULL ptr dereference in multiple network drivers due to missing checks in tty code
457858 - CVE-2008-3275 Linux kernel local filesystem DoS
460401 - CVE-2008-3525 kernel: missing capability checks in sbni_ioctl()
463661 - CVE-2008-4210 kernel: open() call allows setgid bit when user is not in new file's group
6. Package List:
Red Hat Enterprise Linux AS version 3:
Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm
i386:
kernel-2.4.21-58.EL.athlon.rpm
kernel-2.4.21-58.EL.i686.rpm
kernel-BOOT-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.athlon.rpm
kernel-debuginfo-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.i686.rpm
kernel-doc-2.4.21-58.EL.i386.rpm
kernel-hugemem-2.4.21-58.EL.i686.rpm
kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm
kernel-smp-2.4.21-58.EL.athlon.rpm
kernel-smp-2.4.21-58.EL.i686.rpm
kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm
kernel-smp-unsupported-2.4.21-58.EL.i686.rpm
kernel-source-2.4.21-58.EL.i386.rpm
kernel-unsupported-2.4.21-58.EL.athlon.rpm
kernel-unsupported-2.4.21-58.EL.i686.rpm
ia64:
kernel-2.4.21-58.EL.ia64.rpm
kernel-debuginfo-2.4.21-58.EL.ia64.rpm
kernel-doc-2.4.21-58.EL.ia64.rpm
kernel-source-2.4.21-58.EL.ia64.rpm
kernel-unsupported-2.4.21-58.EL.ia64.rpm
ppc:
kernel-2.4.21-58.EL.ppc64iseries.rpm
kernel-2.4.21-58.EL.ppc64pseries.rpm
kernel-debuginfo-2.4.21-58.EL.ppc64.rpm
kernel-debuginfo-2.4.21-58.EL.ppc64iseries.rpm
kernel-debuginfo-2.4.21-58.EL.ppc64pseries.rpm
kernel-doc-2.4.21-58.EL.ppc64.rpm
kernel-source-2.4.21-58.EL.ppc64.rpm
kernel-unsupported-2.4.21-58.EL.ppc64iseries.rpm
kernel-unsupported-2.4.21-58.EL.ppc64pseries.rpm
s390:
kernel-2.4.21-58.EL.s390.rpm
kernel-debuginfo-2.4.21-58.EL.s390.rpm
kernel-doc-2.4.21-58.EL.s390.rpm
kernel-source-2.4.21-58.EL.s390.rpm
kernel-unsupported-2.4.21-58.EL.s390.rpm
s390x:
kernel-2.4.21-58.EL.s390x.rpm
kernel-debuginfo-2.4.21-58.EL.s390x.rpm
kernel-doc-2.4.21-58.EL.s390x.rpm
kernel-source-2.4.21-58.EL.s390x.rpm
kernel-unsupported-2.4.21-58.EL.s390x.rpm
x86_64:
kernel-2.4.21-58.EL.ia32e.rpm
kernel-2.4.21-58.EL.x86_64.rpm
kernel-debuginfo-2.4.21-58.EL.ia32e.rpm
kernel-debuginfo-2.4.21-58.EL.x86_64.rpm
kernel-doc-2.4.21-58.EL.x86_64.rpm
kernel-smp-2.4.21-58.EL.x86_64.rpm
kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm
kernel-source-2.4.21-58.EL.x86_64.rpm
kernel-unsupported-2.4.21-58.EL.ia32e.rpm
kernel-unsupported-2.4.21-58.EL.x86_64.rpm
Red Hat Desktop version 3:
Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm
i386:
kernel-2.4.21-58.EL.athlon.rpm
kernel-2.4.21-58.EL.i686.rpm
kernel-BOOT-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.athlon.rpm
kernel-debuginfo-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.i686.rpm
kernel-doc-2.4.21-58.EL.i386.rpm
kernel-hugemem-2.4.21-58.EL.i686.rpm
kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm
kernel-smp-2.4.21-58.EL.athlon.rpm
kernel-smp-2.4.21-58.EL.i686.rpm
kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm
kernel-smp-unsupported-2.4.21-58.EL.i686.rpm
kernel-source-2.4.21-58.EL.i386.rpm
kernel-unsupported-2.4.21-58.EL.athlon.rpm
kernel-unsupported-2.4.21-58.EL.i686.rpm
x86_64:
kernel-2.4.21-58.EL.ia32e.rpm
kernel-2.4.21-58.EL.x86_64.rpm
kernel-debuginfo-2.4.21-58.EL.ia32e.rpm
kernel-debuginfo-2.4.21-58.EL.x86_64.rpm
kernel-doc-2.4.21-58.EL.x86_64.rpm
kernel-smp-2.4.21-58.EL.x86_64.rpm
kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm
kernel-source-2.4.21-58.EL.x86_64.rpm
kernel-unsupported-2.4.21-58.EL.ia32e.rpm
kernel-unsupported-2.4.21-58.EL.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm
i386:
kernel-2.4.21-58.EL.athlon.rpm
kernel-2.4.21-58.EL.i686.rpm
kernel-BOOT-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.athlon.rpm
kernel-debuginfo-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.i686.rpm
kernel-doc-2.4.21-58.EL.i386.rpm
kernel-hugemem-2.4.21-58.EL.i686.rpm
kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm
kernel-smp-2.4.21-58.EL.athlon.rpm
kernel-smp-2.4.21-58.EL.i686.rpm
kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm
kernel-smp-unsupported-2.4.21-58.EL.i686.rpm
kernel-source-2.4.21-58.EL.i386.rpm
kernel-unsupported-2.4.21-58.EL.athlon.rpm
kernel-unsupported-2.4.21-58.EL.i686.rpm
ia64:
kernel-2.4.21-58.EL.ia64.rpm
kernel-debuginfo-2.4.21-58.EL.ia64.rpm
kernel-doc-2.4.21-58.EL.ia64.rpm
kernel-source-2.4.21-58.EL.ia64.rpm
kernel-unsupported-2.4.21-58.EL.ia64.rpm
x86_64:
kernel-2.4.21-58.EL.ia32e.rpm
kernel-2.4.21-58.EL.x86_64.rpm
kernel-debuginfo-2.4.21-58.EL.ia32e.rpm
kernel-debuginfo-2.4.21-58.EL.x86_64.rpm
kernel-doc-2.4.21-58.EL.x86_64.rpm
kernel-smp-2.4.21-58.EL.x86_64.rpm
kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm
kernel-source-2.4.21-58.EL.x86_64.rpm
kernel-unsupported-2.4.21-58.EL.ia32e.rpm
kernel-unsupported-2.4.21-58.EL.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm
i386:
kernel-2.4.21-58.EL.athlon.rpm
kernel-2.4.21-58.EL.i686.rpm
kernel-BOOT-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.athlon.rpm
kernel-debuginfo-2.4.21-58.EL.i386.rpm
kernel-debuginfo-2.4.21-58.EL.i686.rpm
kernel-doc-2.4.21-58.EL.i386.rpm
kernel-hugemem-2.4.21-58.EL.i686.rpm
kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm
kernel-smp-2.4.21-58.EL.athlon.rpm
kernel-smp-2.4.21-58.EL.i686.rpm
kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm
kernel-smp-unsupported-2.4.21-58.EL.i686.rpm
kernel-source-2.4.21-58.EL.i386.rpm
kernel-unsupported-2.4.21-58.EL.athlon.rpm
kernel-unsupported-2.4.21-58.EL.i686.rpm
ia64:
kernel-2.4.21-58.EL.ia64.rpm
kernel-debuginfo-2.4.21-58.EL.ia64.rpm
kernel-doc-2.4.21-58.EL.ia64.rpm
kernel-source-2.4.21-58.EL.ia64.rpm
kernel-unsupported-2.4.21-58.EL.ia64.rpm
x86_64:
kernel-2.4.21-58.EL.ia32e.rpm
kernel-2.4.21-58.EL.x86_64.rpm
kernel-debuginfo-2.4.21-58.EL.ia32e.rpm
kernel-debuginfo-2.4.21-58.EL.x86_64.rpm
kernel-doc-2.4.21-58.EL.x86_64.rpm
kernel-smp-2.4.21-58.EL.x86_64.rpm
kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm
kernel-source-2.4.21-58.EL.x86_64.rpm
kernel-unsupported-2.4.21-58.EL.ia32e.rpm
kernel-unsupported-2.4.21-58.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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4210
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3275
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0598
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2136
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2812
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6063
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3525
http://www.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2008 Red Hat, Inc.
