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UNIRAS Brief - 680/05 - Red Hat - Kernel security updates



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 680/05 dated 26.08.05  Time: 12:19  
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
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Red Hat Security Advisories
RHSA-2005:529-01 - kernel security update
RHSA-2005:551-01 - kernel security update

Detail
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                   Red Hat Security Advisory

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2005:529-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-529.html
Issue date:        2005-08-25
Updated on:        2005-08-25
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2005-0504 CAN-2005-0749 CAN-2005-1263 CAN-2004-1056
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1. Summary:

Updated kernel packages that fix a number of security issues as well as
other bugs are now available for Red Hat Enterprise Linux 2.1 (32 bit
architectures)

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 (Advanced Server) version 2.1 - i386
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Problem description:

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

This is a kernel maintenance update to Red Hat Enterprise Linux 2.1.

The following security issues were corrected:

A flaw between execve() syscall handling and core dumping of ELF-format
executables allowed local unprivileged users to cause a denial of
service (system crash) or possibly gain privileges. The Common
Vulnerabilities and Exposures project has assigned the name CAN-2005-1263
to this issue. 

A flaw when freeing a pointer in load_elf_library was discovered.  A local
user could potentially use this flaw to cause a denial of service (crash).
(CAN-2005-0749)

The Direct Rendering Manager (DRM) driver did 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)

A flaw in the moxa serial driver could allow a local user to perform
privileged operations such as replacing the firmware. (CAN-2005-0504)

The following bug fixes were also made:

- - - Fix a race condition that can cause a panic in __get_lease()
- - - Fix a race condition that can cause a panic when reading /proc/mdstat
- - - Fix incorrect ide accounting
- - - Prevent non-root users from reloading moxa driver firmware
- - - Fix a null-pointer-dereference bug in rpciod
- - - Fix legacy-usb handoff for certain IBM platforms
- - - Fix a bug that caused busy inodes after unmount
- - - Provide an additional fix for a memory leak in scsi_scan_single.
- - - Fix a potential kswapd/dquot deadlock.
- - - Fix a potential local DoS in shmemfs.
- - - Fix a random poolsize vulnerability.

Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels to
the packages associated with their machine configurations as listed in this
erratum.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network.  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 (http://bugzilla.redhat.com/):

127105 - RHEL 2.1: x445 Legacy USB support workaround needed
138517 - Memory Leak in AS 2.1 and 3.0 kernels
139775 - Filesystem quota GFP_KERNEL deadlock kswapd on dqio_sem.
144389 - CAN-2004-1056 insufficient locking checks in DRM code
144534 - random poolsize sysctl handler integer overflow
146103 - CAN-2005-0504 moxa CAP_SYS_RAWIO missing
152412 - CAN-2005-0749 load_elf_library possible DoS
156636 - [IT 54907] System oopsing in __get_lease()
157452 - CAN-2005-1263 Linux kernel ELF core dump privilege elevation


6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/kernel-2.4.9-e.65.src.rpm
75b21788376ac66ca843550c609e7b2f  kernel-2.4.9-e.65.src.rpm

i386:
0115ce5492ec4690d964445d2d9d5a28  kernel-2.4.9-e.65.athlon.rpm
9177fbe85508b0871b351084b4cf2cff  kernel-2.4.9-e.65.i686.rpm
dbf1e8c201a371fe826c1a702790901b  kernel-BOOT-2.4.9-e.65.i386.rpm
0891cd9a3a384918658ed9dd39c957f5  kernel-debug-2.4.9-e.65.i686.rpm
d2c0e5ba807aa9ea06100def9e8a6d63  kernel-doc-2.4.9-e.65.i386.rpm
0bbcb37e9f86b979d5befa0088dc94ca  kernel-enterprise-2.4.9-e.65.i686.rpm
183e048e76fe3a621bcc1ae58bad4ab7  kernel-headers-2.4.9-e.65.i386.rpm
7681a9e9032ca8428d91de93de8acac2  kernel-smp-2.4.9-e.65.athlon.rpm
93cf8bdce245676880fb5f69bd679a77  kernel-smp-2.4.9-e.65.i686.rpm
c29148136ede778664b6ce6400a3e48a  kernel-source-2.4.9-e.65.i386.rpm
595da28faf3f8de4e830479d42671f50  kernel-summit-2.4.9-e.65.i686.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/kernel-2.4.9-e.65.src.rpm
75b21788376ac66ca843550c609e7b2f  kernel-2.4.9-e.65.src.rpm

i386:
0115ce5492ec4690d964445d2d9d5a28  kernel-2.4.9-e.65.athlon.rpm
9177fbe85508b0871b351084b4cf2cff  kernel-2.4.9-e.65.i686.rpm
dbf1e8c201a371fe826c1a702790901b  kernel-BOOT-2.4.9-e.65.i386.rpm
0891cd9a3a384918658ed9dd39c957f5  kernel-debug-2.4.9-e.65.i686.rpm
d2c0e5ba807aa9ea06100def9e8a6d63  kernel-doc-2.4.9-e.65.i386.rpm
183e048e76fe3a621bcc1ae58bad4ab7  kernel-headers-2.4.9-e.65.i386.rpm
7681a9e9032ca8428d91de93de8acac2  kernel-smp-2.4.9-e.65.athlon.rpm
93cf8bdce245676880fb5f69bd679a77  kernel-smp-2.4.9-e.65.i686.rpm
c29148136ede778664b6ce6400a3e48a  kernel-source-2.4.9-e.65.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/kernel-2.4.9-e.65.src.rpm
75b21788376ac66ca843550c609e7b2f  kernel-2.4.9-e.65.src.rpm

i386:
0115ce5492ec4690d964445d2d9d5a28  kernel-2.4.9-e.65.athlon.rpm
9177fbe85508b0871b351084b4cf2cff  kernel-2.4.9-e.65.i686.rpm
dbf1e8c201a371fe826c1a702790901b  kernel-BOOT-2.4.9-e.65.i386.rpm
0891cd9a3a384918658ed9dd39c957f5  kernel-debug-2.4.9-e.65.i686.rpm
d2c0e5ba807aa9ea06100def9e8a6d63  kernel-doc-2.4.9-e.65.i386.rpm
0bbcb37e9f86b979d5befa0088dc94ca  kernel-enterprise-2.4.9-e.65.i686.rpm
183e048e76fe3a621bcc1ae58bad4ab7  kernel-headers-2.4.9-e.65.i386.rpm
7681a9e9032ca8428d91de93de8acac2  kernel-smp-2.4.9-e.65.athlon.rpm
93cf8bdce245676880fb5f69bd679a77  kernel-smp-2.4.9-e.65.i686.rpm
c29148136ede778664b6ce6400a3e48a  kernel-source-2.4.9-e.65.i386.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=CAN-2005-0504
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0749
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1263
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1056

8. Contact:

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

Copyright 2005 Red Hat, Inc.

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                   Red Hat Security Advisory

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2005:551-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-551.html
Issue date:        2005-08-25
Updated on:        2005-08-25
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2005-0504 CAN-2005-0749 CAN-2005-1263 CAN-2005-1768 CAN-2005-1761 CAN-2004-1056
- - ---------------------------------------------------------------------

1. Summary:

Updated kernel packages are now available to correct security issues and
bugs for Red Hat Enterprise Linux version 2.1 (Itanium).

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 (Advanced Server) version 2.1 - ia64
Red Hat Linux Advanced Workstation 2.1 - ia64

3. Problem description:

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

This is a kernel maintenance update to Red Hat Enterprise Linux 2.1.

The following security issues are corrected:

A flaw between execve() syscall handling and core dumping of ELF-format
executables allowed local unprivileged users to cause a denial of
service (system crash) or possibly gain privileges. The Common
Vulnerabilities and Exposures project has assigned the name CAN-2005-1263
to this issue.

A flaw in ptrace for Itanium architectures was discovered.  A local user
could use this flaw to cause a denial of service (crash) or possibly gain
privileges. (CAN-2005-1761)

A race condition in the ia32 compatibility code for the execve system call
was discovered.  A local user could use this flaw to cause a denial of
service (kernel panic) or possibly gain privileges.  (CAN-2005-1768)

A flaw when freeing a pointer in load_elf_library was discovered. A local
user could potentially use this flaw to cause a denial of service (crash).
(CAN-2005-0749)

The Direct Rendering Manager (DRM) driver did 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)

A flaw in the moxa serial driver could allow a local user to perform
privileged operations such as replacing the firmware. (CAN-2005-0504) 

The following bug fixes were also made:

- - - "busy inodes after unmount" error on NFS volumes
- - - Establish 64-bit limits even for 32-bit threads
- - - Fix a race condition in __get_lease
- - - Fix error in IDE disk accounting. This last fix causes IO accounting 
  to occur only on READ and WRITE operations.  This fixes several bugs 
  in various accounting and statistic utilities.
- - - Fix kswapd/dquot deadlock bug
- - - Fix loop control bug in do_shmem_file_read

All Red Hat Enterprise Linux 2.1 Itanium users are advised to upgrade their
kernels to the packages associated with their machine configurations as
listed in this erratum.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network.  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 (http://bugzilla.redhat.com/):

139775 - Filesystem quota GFP_KERNEL deadlock kswapd on dqio_sem.
144389 - CAN-2004-1056 insufficient locking checks in DRM code
144533 - random poolsize sysctl handler integer overflow
146104 - CAN-2005-0504 moxa CAP_SYS_RAWIO missing (ipf)
151230 - System hangs with kernel patch e.52 while dce install/run
152413 - CAN-2005-0749 load_elf_library possible DoS (ipf)
157453 - CAN-2005-1263 Linux kernel ELF core dump privilege elevation (ipf)
159824 - CAN-2005-1761 local user can use ptrace to crash system
160200 - CAN-2005-1768 64bit execve() race leads to buffer overflow
160562 - Race condition in __get_lease()
165950 - Unexpected error: VFS: Busy inodes after unmount. Self-destruct in 5 seconds.


6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/kernel-2.4.18-e.58.src.rpm
405aef6d6b5f0aa4746276382c4a4524  kernel-2.4.18-e.58.src.rpm

ia64:
b8667d554215df25d99ac30fb723a265  kernel-2.4.18-e.58.ia64.rpm
bc09fcf07e63bb0d12ca88bdb3e077a0  kernel-doc-2.4.18-e.58.ia64.rpm
ee7570ac40f9f6d0bcfa0393ba4c0d71  kernel-smp-2.4.18-e.58.ia64.rpm
46666a903e05bf47f6109766c7563003  kernel-source-2.4.18-e.58.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/kernel-2.4.18-e.58.src.rpm
405aef6d6b5f0aa4746276382c4a4524  kernel-2.4.18-e.58.src.rpm

ia64:
b8667d554215df25d99ac30fb723a265  kernel-2.4.18-e.58.ia64.rpm
bc09fcf07e63bb0d12ca88bdb3e077a0  kernel-doc-2.4.18-e.58.ia64.rpm
ee7570ac40f9f6d0bcfa0393ba4c0d71  kernel-smp-2.4.18-e.58.ia64.rpm
46666a903e05bf47f6109766c7563003  kernel-source-2.4.18-e.58.ia64.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=CAN-2005-0504
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0749
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1263
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1768
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1761
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1056

8. Contact:

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

Copyright 2005 Red Hat, Inc.

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UNIRAS wishes to acknowledge the contributions of Red Hat, Inc. for the 
information contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
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Reference to any specific commercial product, process, or service by trade 
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<End of UNIRAS Briefing>

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