The ext3 code in Linux 2.4.x before 2.4.26 does not properly initialize journal descriptor blocks, which causes an information leak in which in-memory data is written to the device for the ext3 file system, which allows privileged users to obtain portions of kernel memory by reading the raw device.

Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 3 kernel are now available.

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

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

The following security issues were fixed :

The Vicam USB driver did not use the copy_from_user function to access userspace, crossing security boundaries. (CVE-2004-0075)

The ext3 and jfs code did not properly initialize journal descriptor blocks. A privileged local user could read portions of kernel memory.
(CVE-2004-0177)

The terminal layer did not properly lock line discipline changes or pending IO. An unprivileged local user could read portions of kernel memory, or cause a denial of service (system crash). (CVE-2004-0814)

A race condition was discovered. Local users could use this flaw to read the environment variables of another process that is still spawning via /proc/.../cmdline. (CVE-2004-1058)

A flaw in the execve() syscall handling was discovered, allowing a local user to read setuid ELF binaries that should otherwise be protected by standard permissions. (CVE-2004-1073). Red Hat originally reported this as being fixed by RHSA-2004:549, but the associated fix was missing from that update.

Keith Owens reported a flaw in the Itanium unw_unwind_to_user() function. A local user could use this flaw to cause a denial of service (system crash) on the Itanium architecture. (CVE-2005-0135)

A missing Itanium syscall table entry could allow an unprivileged local user to cause a denial of service (system crash) on the Itanium architecture. (CVE-2005-0137)

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

A flaw was discovered in the Linux PPP driver. On systems allowing remote users to connect to a server using ppp, a remote client could cause a denial of service (system crash). (CVE-2005-0384)

A flaw in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 was discovered that left a pointer to a freed tty structure. A local user could potentially use this flaw to cause a denial of service (system crash) or possibly gain read or write access to ttys that should normally be prevented. (CVE-2005-0403)

A flaw in fragment queuing was discovered affecting the netfilter subsystem. On systems configured to filter or process network packets (for example those configured to do firewalling), a remote attacker could send a carefully crafted set of fragmented packets to a machine and cause a denial of service (system crash). In order to sucessfully exploit this flaw, the attacker would need to know (or guess) some aspects of the firewall ruleset in place on the target system to be able to craft the right fragmented packets. (CVE-2005-0449)

Missing validation of an epoll_wait() system call parameter could allow a local user to cause a denial of service (system crash) on the IBM S/390 and zSeries architectures. (CVE-2005-0736)

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 (system crash). (CVE-2005-0749)

A flaw was discovered in the bluetooth driver system. On system where the bluetooth modules are loaded, a local user could use this flaw to gain elevated (root) privileges. (CVE-2005-0750)

In addition to the security issues listed above, there was an important fix made to the handling of the msync() system call for a particular case in which the call could return without queuing modified mmap()'ed data for file system update. (BZ 147969)

Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed.

Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures/configurations

Please note that the fix for CVE-2005-0449 required changing the external symbol linkages (kernel module ABI) for the ip_defrag() and ip_ct_gather_frags() functions. Any third-party module using either of these would also need to be fixed.

Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 2.1. This is the sixth regular update.

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

This is the sixth regular kernel update to Red Hat Enterprise Linux version 2.1. It updates a number of device drivers, and adds much improved SATA support.

This update includes fixes for several security issues :

Paul Starzetz of iSEC discovered various flaws in the ELF binary loader affecting kernels prior to 2.4.28. A local user could use these flaws to gain read access to executable-only binaries or possibly gain privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2004-1070, CVE-2004-1071, CVE-2004-1072, and CVE-2004-1073 to these issues.

A missing serialization flaw in unix_dgram_recvmsg was discovered that affects kernels prior to 2.4.28. A local user could potentially make use of a race condition in order to gain privileges. (CVE-2004-1068)

Stefan Esser discovered various flaws including buffer overflows in the smbfs driver affecting kernels before 2.4.28. A local user may be able to cause a denial of service (crash) or possibly gain privileges.
In order to exploit these flaws the user would need to have control of a connected smb server. (CVE-2004-0883, CVE-2004-0949)

Conectiva discovered flaws in certain USB drivers affecting kernels before 2.4.27 which used the copy_to_user function on uninitialized structures. These flaws could allow local users to read small amounts of kernel memory. (CVE-2004-0685)

The ext3 code in kernels before 2.4.26 did not properly initialize journal descriptor blocks. A privileged local user could read portions of kernel memory. (CVE-2004-0177)

The following drivers have also been updated :

* tg3 v3.10 * e1000 v5.3.19-k2 * e100 v3.0.27-k2 * megaraid * megaraid2 v2.10.8.2

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

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.16 for the ARM architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2003-0127     The kernel module loader allows local users to gain root     privileges by using ptrace to attach to a child process     that is spawned by the kernel.

  - CAN-2004-0003

    A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case a local attacker     could obtain sensitive information (such as     cryptographic keys in another worst case) which would     otherwise never hit disk media. Theodore Ts'o developed     a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

  Architecture    stable (woody)  unstable (sid)    source          2.4.16-1woody2  2.4.25-3          arm/patch       20040419        20040316          arm/lart        20040419        2.4.25-4          arm/netwinder   20040419        2.4.25-4          arm/riscpc      20040419        2.4.25-4

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.19 for the MIPS architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

  Architecture              stable (woody)            unstable (sid)            removed in sid              source                    2.4.19-4.woody2           2.4.25-3                  2.4.19-11                   mips                      2.4.19-0.020911.1.woody4  2.4.25-0.040415.1         2.4.19-0.020911.8

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 for the MIPS and MIPSel architectures. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

  Architecture              stable (woody)            unstable (sid)            removed in sid              source                    2.4.17-1woody3            2.4.25-3                  2.4.19-11                   mips                      2.4.17-0.020226.2.woody6  2.4.25-0.040415.1         2.4.19-0.020911.8           mipsel                    2.4.17-0.020226.2.woody6  2.4.25-0.040415.1         2.4.19-0.020911.9

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 for the PowerPC/apus and S/390 architectures. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed.

  Architecture                      stable (woody)                    unstable (sid)                      source                            2.4.17-1woody3                    2.4.25-3                            powerpc/apus                      2.4.17-5                          2.4.25-2                            s390                              2.4.17-2.woody.4                  2.4.25-2 (and probably 2.4.21-3)

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 for the IA-64 architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 and 2.4.18 for the hppa (PA-RISC) architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.18 for the alpha, i386 and powerpc architectures. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed. Kernel images in the unstable Debian distribution (sid) will be fixed soon.

  Architecture    stable (woody)  unstable (sid)  removed in sid    source          2.4.18-14.3     2.4.25-3        --               alpha           2.4.18-15       soon            --               i386            2.4.18-13       soon            --               i386bf          2.4.18-5woody8  soon            --               powerpc         2.4.18-1woody5  2.4.25-8        2.4.22

The remote host is affected by the vulnerability described in GLSA-200407-02 (Linux Kernel: Multiple vulnerabilities)

    Multiple flaws have been discovered in the Linux kernel. This advisory     corrects the following issues:
    CAN-2004-0109: This vulnerability allows privilege escalation using     ISO9660 file systems through a buffer overflow via a malformed file     system containing a long symbolic link entry. This can allow arbitrary     code execution at kernel level.
    CAN-2004-0133: The XFS file system in 2.4 series kernels has an     information leak by which data in the memory can be written to the     device hosting the file system, allowing users to obtain portions of     kernel memory by reading the raw block device.
    CAN-2004-0177: The ext3 file system in 2.4 series kernels does not     properly initialize journal descriptor blocks, causing an information     leak by which data in the memory can be written to the device hosting     the file system, allowing users to obtain portions of kernel memory by     reading the raw device.
    CAN-2004-0181: The JFS file system in 2.4 series kernels has an     information leak by which data in the memory can be written to the     device hosting the file system, allowing users to obtain portions of     kernel memory by reading the raw device.
    CAN-2004-0178: The OSS Sound Blaster [R] Driver has a Denial of Service     vulnerability since it does not handle certain sample sizes properly.
    This allows local users to hang the kernel.
    CAN-2004-0228: Due to an integer signedness error in the CPUFreq /proc     handler code in 2.6 series Linux kernels, local users can escalate     their privileges.
    CAN-2004-0229: The framebuffer driver in 2.6 series kernel drivers does     not use the fb_copy_cmap method of copying structures. The impact of     this issue is unknown, however.
    CAN-2004-0394: A buffer overflow in the panic() function of 2.4 series     Linux kernels exists, but it may not be exploitable under normal     circumstances due to its functionality.
    CAN-2004-0427: The do_fork() function in both 2.4 and 2.6 series Linux     kernels does not properly decrement the mm_count counter when an error     occurs, triggering a memory leak that allows local users to cause a     Denial of Service by exhausting other applications of memory; causing     the kernel to panic or to kill services.
    CAN-2004-0495: Multiple vulnerabilities found by the Sparse source     checker in the kernel allow local users to escalate their privileges or     gain access to kernel memory.
    CAN-2004-0535: The e1000 NIC driver does not properly initialize memory     structures before using them, allowing users to read kernel memory.
    CAN-2004-0554: 2.4 and 2.6 series kernels running on an x86 or an AMD64     architecture allow local users to cause a Denial of Service by a total     system hang, due to an infinite loop that triggers a signal handler     with a certain sequence of fsave and frstor instructions.
    Local DoS in PaX: If ASLR is enabled as a GRSecurity PaX feature, a     Denial of Service can be achieved by putting the kernel into an     infinite loop. Only 2.6 series GRSecurity kernels are affected by this     issue.
    RSBAC 1.2.3 JAIL issues: A flaw in the RSBAC JAIL implementation allows     suid/sgid files to be created inside the jail since the relevant module     does not check the corresponding mode values. This can allow privilege     escalation inside the jail. Only rsbac-(dev-)sources are affected by     this issue.
  Impact :

    Arbitrary code with normal non-super-user privileges may be able to     exploit any of these vulnerabilities; gaining kernel level access to     memory structures and hardware devices. This may be used for further     exploitation of the system, to leak sensitive data or to cause a Denial     of Service on the affected kernel.
  Workaround :

    Although users may not be affected by certain vulnerabilities, all     kernels are affected by the CAN-2004-0394, CAN-2004-0427 and     CAN-2004-0554 issues which have no workaround. As a result, all users     are urged to upgrade their kernels to patched versions.

A vulnerability was found in the R128 DRI driver by Alan Cox. This could allow local privilege escalation. The previous fix, in MDKSA-2004:015 only partially corrected the problem; the full fix is included (CVE-2004-0003).

A local root vulnerability was discovered in the isofs component of the Linux kernel by iDefense. This vulnerability can be triggered by performing a directory listing on a maliciously constructed ISO filesystem, or attempting to access a file via a malformed symlink on such a filesystem (CVE-2004-0109).

An information leak was discovered in the ext3 filesystem code by Solar Designer. It was discovered that when creating or writing to an ext3 filesystem, some amount of other in-memory data gets written to the device. The data is not the file's contents, not something on the same filesystem, or even anything that was previously in a file at all. To obtain this data, a user needs to read the raw device (CVE-2004-0177).

The same vulnerability was also found in the XFS filesystem code (CVE-2004-0133) and the JFS filesystem code (CVE-2004-0181).

Finally, a vulnerability in the OSS code for SoundBlaster 16 devices was discovered by Andreas Kies. It is possible for local users with access to the sound system to crash the machine (CVE-2004-0178).

The provided packages are patched to fix these vulnerabilities. All users are encouraged to upgrade to these updated kernels.

To update your kernel, please follow the directions located at :

http://www.mandrakesecure.net/en/kernelupdate.php

Updated kernel packages that fix several security issues in the Red
Hat Enterprise Linux 3 kernel are now available.

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

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

The following security issues were fixed :

The Vicam USB driver did not use the copy_from_user function to access
userspace, crossing security boundaries. (CVE-2004-0075)

The ext3 and jfs code did not properly initialize journal descriptor
blocks. A privileged local user could read portions of kernel memory.
(CVE-2004-0177)

The terminal layer did not properly lock line discipline changes or
pending IO. An unprivileged local user could read portions of kernel
memory, or cause a denial of service (system crash). (CVE-2004-0814)

A race condition was discovered. Local users could use this flaw to
read the environment variables of another process that is still
spawning via /proc/.../cmdline. (CVE-2004-1058)

A flaw in the execve() syscall handling was discovered, allowing a
local user to read setuid ELF binaries that should otherwise be
protected by standard permissions. (CVE-2004-1073). Red Hat originally
reported this as being fixed by RHSA-2004:549, but the associated fix
was missing from that update.

Keith Owens reported a flaw in the Itanium unw_unwind_to_user()
function. A local user could use this flaw to cause a denial of
service (system crash) on the Itanium architecture. (CVE-2005-0135)

A missing Itanium syscall table entry could allow an unprivileged
local user to cause a denial of service (system crash) on the Itanium
architecture. (CVE-2005-0137)

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

A flaw was discovered in the Linux PPP driver. On systems allowing
remote users to connect to a server using ppp, a remote client could
cause a denial of service (system crash). (CVE-2005-0384)

A flaw in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3
was discovered that left a pointer to a freed tty structure. A local
user could potentially use this flaw to cause a denial of service
(system crash) or possibly gain read or write access to ttys that
should normally be prevented. (CVE-2005-0403)

A flaw in fragment queuing was discovered affecting the netfilter
subsystem. On systems configured to filter or process network packets
(for example those configured to do firewalling), a remote attacker
could send a carefully crafted set of fragmented packets to a machine
and cause a denial of service (system crash). In order to sucessfully
exploit this flaw, the attacker would need to know (or guess) some
aspects of the firewall ruleset in place on the target system to be
able to craft the right fragmented packets. (CVE-2005-0449)

Missing validation of an epoll_wait() system call parameter could
allow a local user to cause a denial of service (system crash) on the
IBM S/390 and zSeries architectures. (CVE-2005-0736)

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 (system crash). (CVE-2005-0749)

A flaw was discovered in the bluetooth driver system. On system where
the bluetooth modules are loaded, a local user could use this flaw to
gain elevated (root) privileges. (CVE-2005-0750)

In addition to the security issues listed above, there was an
important fix made to the handling of the msync() system call for a
particular case in which the call could return without queuing
modified mmap()'ed data for file system update. (BZ 147969)

Note: The kernel-unsupported package contains various drivers and
modules that are unsupported and therefore might contain security
problems that have not been addressed.

Red Hat Enterprise Linux 3 users are advised to upgrade their kernels
to the packages associated with their machine
architectures/configurations

Please note that the fix for CVE-2005-0449 required changing the
external symbol linkages (kernel module ABI) for the ip_defrag() and
ip_ct_gather_frags() functions. Any third-party module using either of
these would also need to be fixed.

Updated kernel packages are now available as part of ongoing support
and maintenance of Red Hat Enterprise Linux version 2.1. This is the
sixth regular update.

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

This is the sixth regular kernel update to Red Hat Enterprise Linux
version 2.1. It updates a number of device drivers, and adds much
improved SATA support.

This update includes fixes for several security issues :

Paul Starzetz of iSEC discovered various flaws in the ELF binary
loader affecting kernels prior to 2.4.28. A local user could use these
flaws to gain read access to executable-only binaries or possibly gain
privileges. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the names CVE-2004-1070, CVE-2004-1071,
CVE-2004-1072, and CVE-2004-1073 to these issues.

A missing serialization flaw in unix_dgram_recvmsg was discovered that
affects kernels prior to 2.4.28. A local user could potentially make
use of a race condition in order to gain privileges. (CVE-2004-1068)

Stefan Esser discovered various flaws including buffer overflows in
the smbfs driver affecting kernels before 2.4.28. A local user may be
able to cause a denial of service (crash) or possibly gain privileges.
In order to exploit these flaws the user would need to have control of
a connected smb server. (CVE-2004-0883, CVE-2004-0949)

Conectiva discovered flaws in certain USB drivers affecting kernels
before 2.4.27 which used the copy_to_user function on uninitialized
structures. These flaws could allow local users to read small amounts
of kernel memory. (CVE-2004-0685)

The ext3 code in kernels before 2.4.26 did not properly initialize
journal descriptor blocks. A privileged local user could read portions
of kernel memory. (CVE-2004-0177)

The following drivers have also been updated :

* tg3 v3.10 * e1000 v5.3.19-k2 * e100 v3.0.27-k2 * megaraid *
megaraid2 v2.10.8.2

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

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2005-293.

ID	Name	Product	Family	Severity
21923	CentOS 3 : kernel (CESA-2005:293)	Nessus	CentOS Local Security Checks	high
18128	RHEL 3 : kernel (RHSA-2005:293)	Nessus	Red Hat Local Security Checks	high
15958	RHEL 2.1 : kernel (RHSA-2004:505)	Nessus	Red Hat Local Security Checks	high
15332	Debian DSA-495-1 : linux-kernel-2.4.16-arm - several vulnerabilities	Nessus	Debian Local Security Checks	high
15328	Debian DSA-491-1 : linux-kernel-2.4.19-mips - several vulnerabilities	Nessus	Debian Local Security Checks	high
15326	Debian DSA-489-1 : linux-kernel-2.4.17-mips+mipsel - several vulnerabilities	Nessus	Debian Local Security Checks	high
15319	Debian DSA-482-1 : linux-kernel-2.4.17-apus+s390 - several vulnerabilities	Nessus	Debian Local Security Checks	high
15318	Debian DSA-481-1 : linux-kernel-2.4.17-ia64 - several vulnerabilities	Nessus	Debian Local Security Checks	high
15317	Debian DSA-480-1 : linux-kernel-2.4.17+2.4.18-hppa - several vulnerabilities	Nessus	Debian Local Security Checks	high
15316	Debian DSA-479-1 : linux-kernel-2.4.18-alpha+i386+powerpc - several vulnerabilities	Nessus	Debian Local Security Checks	high
14535	GLSA-200407-02 : Linux Kernel: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
14128	Mandrake Linux Security Advisory : kernel (MDKSA-2004:029)	Nessus	Mandriva Local Security Checks	medium
801608	Red Hat 2005-293 Security Check	Log Correlation Engine	Generic	high
801600	Red Hat 2004-505 Security Check	Log Correlation Engine	Generic	high
801398	CentOS RHSA-2005-293 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2004-0177

medium

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

medium

high

high

high