fs/direct-io.c in the dio subsystem in the Linux kernel before 2.6.23 does not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a certain fio test.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - CVE-2008-2931: missing check before setting mount     propagation

  - CVE-2007-6716: dio: use kzalloc to zero out struct dio

  - CVE-2008-3272: snd_seq_oss_synth_make_info leak

  - CVE-2008-3275: vfs: fix lookup on deleted directory

  - CVE-2007-6417: tmpfs: restore missing clear_highpage

From Red Hat Security Advisory 2008:0972 :

Updated kernel packages that resolve several security issues and fix various bugs 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* a flaw was found in the Linux kernel's Direct-IO implementation.
This could have allowed a local unprivileged user to cause a denial of service. (CVE-2007-6716, Important)

* when running ptrace in 31-bit mode on an IBM S/390 or IBM System z kernel, a local unprivileged user could cause a denial of service by reading from or writing into a padding area in the user_regs_struct32 structure. (CVE-2008-1514, Important)

* the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could have allowed a local unprivileged user to obtain access to privileged information.
(CVE-2008-4210, Important)

* Tobias Klein reported a missing check in the Linux kernel's Open Sound System (OSS) implementation. This deficiency could have led to an information leak. (CVE-2008-3272, Moderate)

* a potential denial of service attack was discovered in the Linux kernel's PWC USB video driver. A local unprivileged user could have used this flaw to bring the kernel USB subsystem into the busy-waiting state. (CVE-2007-5093, Low)

* the ext2 and ext3 file systems code failed to properly handle corrupted data structures, leading to a possible local denial of service issue when read or write operations were performed.
(CVE-2008-3528, Low)

In addition, these updated packages fix the following bugs :

* when using the CIFS 'forcedirectio' option, appending to an open file on a CIFS share resulted in that file being overwritten with the data to be appended.

* a kernel panic occurred when a device with PCI ID 8086:10c8 was present on a system with a loaded ixgbe driver.

* due to an aacraid driver regression, the kernel failed to boot when trying to load the aacraid driver and printed the following error message: 'aac_srb: aac_fib_send failed with status: 8195'.

* due to an mpt driver regression, when RAID 1 was configured on Primergy systems with an LSI SCSI IME 53C1020/1030 controller, the kernel panicked during boot.

* the mpt driver produced a large number of extraneous debugging messages when performing a 'Host reset' operation.

* due to a regression in the sym driver, the kernel panicked when a SCSI hot swap was performed using MCP18 hardware.

* all cores on a multi-core system now scale their frequencies in accordance with the policy set by the system's CPU frequency governor.

* the netdump subsystem suffered from several stability issues. These are addressed in this updated kernel.

* under certain conditions, the ext3 file system reported a negative count of used blocks.

* reading /proc/self/mem incorrectly returned 'Invalid argument' instead of 'input/output error' due to a regression.

* under certain conditions, the kernel panicked when a USB device was removed while the system was busy accessing the device.

* a race condition in the kernel could have led to a kernel crash during the creation of a new process.

All Red Hat Enterprise Linux 4 Users should upgrade to these updated packages, which contain backported patches to correct these issues.

From Red Hat Security Advisory 2008:0885 :

Updated kernel packages that fix various security issues and several bugs are now available for Red Hat Enterprise Linux 5.

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

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* a missing capability check was found in the Linux kernel do_change_type routine. This could allow a local unprivileged user to gain privileged access or cause a denial of service. (CVE-2008-2931, Important)

* a flaw was found in the Linux kernel Direct-IO implementation. This could allow a local unprivileged user to cause a denial of service.
(CVE-2007-6716, Important)

* Tobias Klein reported a missing check in the Linux kernel Open Sound System (OSS) implementation. This deficiency could lead to a possible information leak. (CVE-2008-3272, 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)

* a flaw was found in the Linux kernel tmpfs implementation. This could allow a local unprivileged user to read sensitive information from the kernel. (CVE-2007-6417, Moderate)

Bug fixes :

* when copying a small IPoIB packet from the original skb it was received in to a new, smaller skb, all fields in the new skb were not initialized. This may have caused a kernel oops.

* previously, data may have been written beyond the end of an array, causing memory corruption on certain systems, resulting in hypervisor crashes during context switching.

* a kernel crash may have occurred on heavily-used Samba servers after 24 to 48 hours of use.

* under heavy memory pressure, pages may have been swapped out from under the SGI Altix XPMEM driver, causing silent data corruption in the kernel.

* the ixgbe driver is untested, but support was advertised for the Intel 82598 network card. If this card was present when the ixgbe driver was loaded, a NULL pointer dereference and a panic occurred.

* on certain systems, if multiple InfiniBand queue pairs simultaneously fell into an error state, an overrun may have occurred, stopping traffic.

* with bridging, when forward delay was set to zero, setting an interface to the forwarding state was delayed by one or possibly two timers, depending on whether STP was enabled. This may have caused long delays in moving an interface to the forwarding state. This issue caused packet loss when migrating virtual machines, preventing them from being migrated without interrupting applications.

* on certain multinode systems, IPMI device nodes were created in reverse order of where they physically resided.

* process hangs may have occurred while accessing application data files via asynchronous direct I/O system calls.

* on systems with heavy lock traffic, a possible deadlock may have caused anything requiring locks over NFS to stop, or be very slow.
Errors such as 'lockd: server [IP] not responding, timed out' were logged on client systems.

* unexpected removals of USB devices may have caused a NULL pointer dereference in kobject_get_path.

* on Itanium-based systems, repeatedly creating and destroying Windows guests may have caused Dom0 to crash, due to the 'XENMEM_add_to_physmap' hypercall, used by para-virtualized drivers on HVM, being SMP-unsafe.

* when using an MD software RAID, crashes may have occurred when devices were removed or changed while being iterated through. Correct locking is now used.

* break requests had no effect when using 'Serial Over Lan' with the Intel 82571 network card. This issue may have caused log in problems.

* on Itanium-based systems, module_free() referred the first parameter before checking it was valid. This may have caused a kernel panic when exiting SystemTap.

Red Hat Enterprise Linux 5 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

- a flaw was found in the Linux kernel's Direct-IO     implementation. This could have allowed a local     unprivileged user to cause a denial of service.
    (CVE-2007-6716, Important)

  - when running ptrace in 31-bit mode on an IBM S/390 or     IBM System z kernel, a local unprivileged user could     cause a denial of service by reading from or writing     into a padding area in the user_regs_struct32 structure.
    (CVE-2008-1514, Important)

  - the do_truncate() and generic_file_splice_write()     functions did not clear the setuid and setgid bits. This     could have allowed a local unprivileged user to obtain     access to privileged information. (CVE-2008-4210,     Important)

  - Tobias Klein reported a missing check in the Linux     kernel's Open Sound System (OSS) implementation. This     deficiency could have led to an information leak.
    (CVE-2008-3272, Moderate)

  - a potential denial of service attack was discovered in     the Linux kernel's PWC USB video driver. A local     unprivileged user could have used this flaw to bring the     kernel USB subsystem into the busy-waiting state.
    (CVE-2007-5093, Low)

  - the ext2 and ext3 file systems code failed to properly     handle corrupted data structures, leading to a possible     local denial of service issue when read or write     operations were performed. (CVE-2008-3528, Low)

In addition, these updated packages fix the following bugs :

  - when using the CIFS 'forcedirectio' option, appending to     an open file on a CIFS share resulted in that file being     overwritten with the data to be appended.

  - a kernel panic occurred when a device with PCI ID     8086:10c8 was present on a system with a loaded ixgbe     driver.

  - due to an aacraid driver regression, the kernel failed     to boot when trying to load the aacraid driver and     printed the following error message: 'aac_srb:
    aac_fib_send failed with status: 8195'.

  - due to an mpt driver regression, when RAID 1 was     configured on Primergy systems with an LSI SCSI IME     53C1020/1030 controller, the kernel panicked during     boot.

  - the mpt driver produced a large number of extraneous     debugging messages when performing a 'Host reset'     operation.

  - due to a regression in the sym driver, the kernel     panicked when a SCSI hot swap was performed using MCP18     hardware.

  - all cores on a multi-core system now scale their     frequencies in accordance with the policy set by the     system's CPU frequency governor.

  - the netdump subsystem suffered from several stability     issues. These are addressed in this updated kernel.

  - under certain conditions, the ext3 file system reported     a negative count of used blocks.

  - reading /proc/self/mem incorrectly returned 'Invalid     argument' instead of 'input/output error' due to a     regression.

  - under certain conditions, the kernel panicked when a USB     device was removed while the system was busy accessing     the device.

  - a race condition in the kernel could have led to a     kernel crash during the creation of a new process.

Security fixes :

  - a missing capability check was found in the Linux kernel     do_change_type routine. This could allow a local     unprivileged user to gain privileged access or cause a     denial of service. (CVE-2008-2931, Important)

  - a flaw was found in the Linux kernel Direct-IO     implementation. This could allow a local unprivileged     user to cause a denial of service. (CVE-2007-6716,     Important)

  - Tobias Klein reported a missing check in the Linux     kernel Open Sound System (OSS) implementation. This     deficiency could lead to a possible information leak.
    (CVE-2008-3272, 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)

  - a flaw was found in the Linux kernel tmpfs     implementation. This could allow a local unprivileged     user to read sensitive information from the kernel.
    (CVE-2007-6417, Moderate)

Bug fixes :

  - when copying a small IPoIB packet from the original skb     it was received in to a new, smaller skb, all fields in     the new skb were not initialized. This may have caused a     kernel oops.

  - previously, data may have been written beyond the end of     an array, causing memory corruption on certain systems,     resulting in hypervisor crashes during context     switching.

  - a kernel crash may have occurred on heavily-used Samba     servers after 24 to 48 hours of use.

  - under heavy memory pressure, pages may have been swapped     out from under the SGI Altix XPMEM driver, causing     silent data corruption in the kernel.

  - the ixgbe driver is untested, but support was advertised     for the Intel 82598 network card. If this card was     present when the ixgbe driver was loaded, a NULL pointer     dereference and a panic occurred.

  - on certain systems, if multiple InfiniBand queue pairs     simultaneously fell into an error state, an overrun may     have occurred, stopping traffic.

  - with bridging, when forward delay was set to zero,     setting an interface to the forwarding state was delayed     by one or possibly two timers, depending on whether STP     was enabled. This may have caused long delays in moving     an interface to the forwarding state. This issue caused     packet loss when migrating virtual machines, preventing     them from being migrated without interrupting     applications.

  - on certain multinode systems, IPMI device nodes were     created in reverse order of where they physically     resided.

  - process hangs may have occurred while accessing     application data files via asynchronous direct I/O     system calls.

  - on systems with heavy lock traffic, a possible deadlock     may have caused anything requiring locks over NFS to     stop, or be very slow. Errors such as 'lockd: server     [IP] not responding, timed out' were logged on client     systems.

  - unexpected removals of USB devices may have caused a     NULL pointer dereference in kobject_get_path.

  - on Itanium-based systems, repeatedly creating and     destroying Windows guests may have caused Dom0 to crash,     due to the 'XENMEM_add_to_physmap' hypercall, used by     para-virtualized drivers on HVM, being SMP-unsafe.

  - when using an MD software RAID, crashes may have     occurred when devices were removed or changed while     being iterated through. Correct locking is now used.

  - break requests had no effect when using 'Serial Over     Lan' with the Intel 82571 network card. This issue may     have caused log in problems.

  - on Itanium-based systems, module_free() referred the     first parameter before checking it was valid. This may     have caused a kernel panic when exiting SystemTap.

This patch updates the SUSE Linux Enterprise 10 SP1 kernel. It fixes various bugs and security issues.

The following security issues are addressed :

  - fs/open.c in the Linux kernel before 2.6.22 does not     properly strip setuid and setgid bits when there is a     write to a file, which allows local users to gain the     privileges of a different group, and obtain sensitive     information or possibly have unspecified other impact,     by creating an executable file in a setgid directory     through the (1) truncate or (2) ftruncate function in     conjunction with memory-mapped I/O. (CVE-2008-4210)

  - The ext[234] filesystem code fails to properly handle     corrupted data structures. With a mounted filesystem     image or partition that have corrupted dir->i_size and     dir->i_blocks, a user performing either a read or write     operation on the mounted image or partition can lead to     a possible denial of service by spamming the logfile.
    (CVE-2008-3528)

  - fs/direct-io.c in the dio subsystem in the Linux kernel     did not properly zero out the dio struct, which allows     local users to cause a denial of service (OOPS), as     demonstrated by a certain fio test. (CVE-2007-6716)

All other bugfixes can be found by looking at the RPM changelog.

This kernel update for SUSE Linux Enterprise 10 Service Pack 2 fixes various bugs and some security problems :

  - When creating a file, open()/creat() allowed the setgid     bit to be set via the mode argument even when, due to     the bsdgroups mount option or the file being created in     a setgid directory, the new file's group is one which     the user is not a member of. The local attacker could     then use ftruncate() and memory-mapped I/O to turn the     new file into an arbitrary binary and thus gain the     privileges of this group, since these operations do not     clear the setgid bit.'. (CVE-2008-4210)

  - The ext[234] filesystem code fails to properly handle     corrupted data structures. With a mounted filesystem     image or partition that have corrupted dir->i_size and     dir->i_blocks, a user performing either a read or write     operation on the mounted image or partition can lead to     a possible denial of service by spamming the logfile.
    (CVE-2008-3528)

  - The S/390 ptrace code allowed local users to cause a     denial of service (kernel panic) via the     user-area-padding test from the ptrace testsuite in     31-bit mode, which triggers an invalid dereference.
    (CVE-2008-1514)

  - fs/direct-io.c in the dio subsystem in the Linux kernel     did not properly zero out the dio struct, which allows     local users to cause a denial of service (OOPS), as     demonstrated by a certain fio test. (CVE-2007-6716)

  - Added missing capability checks in sbni_ioctl().
    (CVE-2008-3525)

Also OCFS2 was updated to version v1.4.1-1.

The full amount of changes can be reviewed in the RPM changelog.

Updated kernel packages that fix various security issues and several bugs are now available for Red Hat Enterprise Linux 5.

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

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* a missing capability check was found in the Linux kernel do_change_type routine. This could allow a local unprivileged user to gain privileged access or cause a denial of service. (CVE-2008-2931, Important)

* a flaw was found in the Linux kernel Direct-IO implementation. This could allow a local unprivileged user to cause a denial of service.
(CVE-2007-6716, Important)

* Tobias Klein reported a missing check in the Linux kernel Open Sound System (OSS) implementation. This deficiency could lead to a possible information leak. (CVE-2008-3272, 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)

* a flaw was found in the Linux kernel tmpfs implementation. This could allow a local unprivileged user to read sensitive information from the kernel. (CVE-2007-6417, Moderate)

Bug fixes :

* when copying a small IPoIB packet from the original skb it was received in to a new, smaller skb, all fields in the new skb were not initialized. This may have caused a kernel oops.

* previously, data may have been written beyond the end of an array, causing memory corruption on certain systems, resulting in hypervisor crashes during context switching.

* a kernel crash may have occurred on heavily-used Samba servers after 24 to 48 hours of use.

* under heavy memory pressure, pages may have been swapped out from under the SGI Altix XPMEM driver, causing silent data corruption in the kernel.

* the ixgbe driver is untested, but support was advertised for the Intel 82598 network card. If this card was present when the ixgbe driver was loaded, a NULL pointer dereference and a panic occurred.

* on certain systems, if multiple InfiniBand queue pairs simultaneously fell into an error state, an overrun may have occurred, stopping traffic.

* with bridging, when forward delay was set to zero, setting an interface to the forwarding state was delayed by one or possibly two timers, depending on whether STP was enabled. This may have caused long delays in moving an interface to the forwarding state. This issue caused packet loss when migrating virtual machines, preventing them from being migrated without interrupting applications.

* on certain multinode systems, IPMI device nodes were created in reverse order of where they physically resided.

* process hangs may have occurred while accessing application data files via asynchronous direct I/O system calls.

* on systems with heavy lock traffic, a possible deadlock may have caused anything requiring locks over NFS to stop, or be very slow.
Errors such as 'lockd: server [IP] not responding, timed out' were logged on client systems.

* unexpected removals of USB devices may have caused a NULL pointer dereference in kobject_get_path.

* on Itanium-based systems, repeatedly creating and destroying Windows guests may have caused Dom0 to crash, due to the 'XENMEM_add_to_physmap' hypercall, used by para-virtualized drivers on HVM, being SMP-unsafe.

* when using an MD software RAID, crashes may have occurred when devices were removed or changed while being iterated through. Correct locking is now used.

* break requests had no effect when using 'Serial Over Lan' with the Intel 82571 network card. This issue may have caused log in problems.

* on Itanium-based systems, module_free() referred the first parameter before checking it was valid. This may have caused a kernel panic when exiting SystemTap.

Red Hat Enterprise Linux 5 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated kernel packages that resolve several security issues and fix various bugs 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* a flaw was found in the Linux kernel's Direct-IO implementation.
This could have allowed a local unprivileged user to cause a denial of service. (CVE-2007-6716, Important)

* when running ptrace in 31-bit mode on an IBM S/390 or IBM System z kernel, a local unprivileged user could cause a denial of service by reading from or writing into a padding area in the user_regs_struct32 structure. (CVE-2008-1514, Important)

* the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could have allowed a local unprivileged user to obtain access to privileged information.
(CVE-2008-4210, Important)

* Tobias Klein reported a missing check in the Linux kernel's Open Sound System (OSS) implementation. This deficiency could have led to an information leak. (CVE-2008-3272, Moderate)

* a potential denial of service attack was discovered in the Linux kernel's PWC USB video driver. A local unprivileged user could have used this flaw to bring the kernel USB subsystem into the busy-waiting state. (CVE-2007-5093, Low)

* the ext2 and ext3 file systems code failed to properly handle corrupted data structures, leading to a possible local denial of service issue when read or write operations were performed.
(CVE-2008-3528, Low)

In addition, these updated packages fix the following bugs :

* when using the CIFS 'forcedirectio' option, appending to an open file on a CIFS share resulted in that file being overwritten with the data to be appended.

* a kernel panic occurred when a device with PCI ID 8086:10c8 was present on a system with a loaded ixgbe driver.

* due to an aacraid driver regression, the kernel failed to boot when trying to load the aacraid driver and printed the following error message: 'aac_srb: aac_fib_send failed with status: 8195'.

* due to an mpt driver regression, when RAID 1 was configured on Primergy systems with an LSI SCSI IME 53C1020/1030 controller, the kernel panicked during boot.

* the mpt driver produced a large number of extraneous debugging messages when performing a 'Host reset' operation.

* due to a regression in the sym driver, the kernel panicked when a SCSI hot swap was performed using MCP18 hardware.

* all cores on a multi-core system now scale their frequencies in accordance with the policy set by the system's CPU frequency governor.

* the netdump subsystem suffered from several stability issues. These are addressed in this updated kernel.

* under certain conditions, the ext3 file system reported a negative count of used blocks.

* reading /proc/self/mem incorrectly returned 'Invalid argument' instead of 'input/output error' due to a regression.

* under certain conditions, the kernel panicked when a USB device was removed while the system was busy accessing the device.

* a race condition in the kernel could have led to a kernel crash during the creation of a new process.

All Red Hat Enterprise Linux 4 Users should upgrade to these updated packages, which contain backported patches to correct these issues.

It was discovered that the direct-IO subsystem did not correctly validate certain structures. A local attacker could exploit this to cause a system crash, leading to a denial of service. (CVE-2007-6716)

It was discovered that the disabling of the ZERO_PAGE optimization could lead to large memory consumption. A local attacker could exploit this to allocate all available memory, leading to a denial of service.
(CVE-2008-2372)

It was discovered that the Datagram Congestion Control Protocol (DCCP) did not correctly validate its arguments. If DCCP was in use, a remote attacker could send specially crafted network traffic and cause a system crash, leading to a denial of service. (CVE-2008-3276)

It was discovered that the SBNI WAN driver did not correctly check for the NET_ADMIN capability. A malicious local root user lacking CAP_NET_ADMIN would be able to change the WAN device configuration, leading to a denial of service. (CVE-2008-3525)

It was discovered that the Stream Control Transmission Protocol (SCTP) did not correctly validate the key length in the SCTP_AUTH_KEY option.
If SCTP is in use, a remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2008-3526)

It was discovered that the tmpfs implementation did not correctly handle certain sequences of inode operations. A local attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2008-3534)

It was discovered that the readv/writev functions did not correctly handle certain sequences of file operations. A local attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2008-3535)

It was discovered that SCTP did not correctly validate its userspace arguments. A local attacker could call certain sctp_* functions with malicious options and cause a system crash, leading to a denial of service. (CVE-2008-3792, CVE-2008-4113, CVE-2008-4445)

It was discovered the the i915 video driver did not correctly validate memory addresses. A local attacker could exploit this to remap memory that could cause a system crash, leading to a denial of service.
(CVE-2008-3831)

Johann Dahm and David Richter discovered that NFSv4 did not correctly handle certain file ACLs. If NFSv4 is in use, a local attacker could create a malicious ACL that could cause a system crash, leading to a denial of service. (CVE-2008-3915).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2008:0972 advisory.

  - kernel PWC driver DoS (CVE-2007-5093)

  - kernel: dio: zero struct dio with kzalloc instead of manually (CVE-2007-6716)

  - kernel: ptrace: Padding area write - unprivileged kernel crash (CVE-2008-1514)

  - kernel snd_seq_oss_synth_make_info leak (CVE-2008-3272)

  - Linux kernel ext[234] directory corruption denial of service (CVE-2008-3528)

  - kernel: open() call allows setgid bit when user is not in new file's group (CVE-2008-4210)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This kernel update fixes various bugs and also several security issues :

CVE-2008-4576: Fixed a crash in SCTP INIT-ACK, on mismatch between SCTP AUTH availability. This might be exploited remotely for a denial of service (crash) attack.

CVE-2008-3833: The generic_file_splice_write function in fs/splice.c in the Linux kernel does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by splicing into an inode in order to create an executable file in a setgid directory.

CVE-2008-4210: fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.

CVE-2008-4302: fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool.

CVE-2008-3528: The ext[234] filesystem code fails to properly handle corrupted data structures. With a mounted filesystem image or partition that have corrupted dir->i_size and dir->i_blocks, a user performing either a read or write operation on the mounted image or partition can lead to a possible denial of service by spamming the logfile.

CVE-2007-6716: fs/direct-io.c in the dio subsystem in the Linux kernel did not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a certain fio test.

CVE-2008-3525: Added missing capability checks in sbni_ioctl().

CVE-2008-3272: Fixed range checking in the snd_seq OSS ioctl, which could be used to leak information from the kernel.

CVE-2008-2931: The do_change_type function in fs/namespace.c did not verify that the caller has the CAP_SYS_ADMIN capability, which allows local users to gain privileges or cause a denial of service by modifying the properties of a mountpoint.

CVE-2008-2812: Various NULL ptr checks have been added to tty op functions, which might have been used by local attackers to execute code. We think that this affects only devices openable by root, so the impact is limited.

CVE-2008-1673: Added range checking in ASN.1 handling for the CIFS and SNMP NAT netfilter modules.

CVE-2008-3527: arch/i386/kernel/sysenter.c in the Virtual Dynamic Shared Objects (vDSO) implementation in the Linux kernel before 2.6.21 did not properly check boundaries, which allows local users to gain privileges or cause a denial of service via unspecified vectors, related to the install_special_mapping, syscall, and syscall32_nopage functions.

The openSUSE 10.3 kernel was update to 2.6.22.19. This includes bugs and security fixes.

CVE-2008-4576: Fixed a crash in SCTP INIT-ACK, on mismatch between SCTP AUTH availability. This might be exploited remotely for a denial of service (crash) attack.

CVE-2008-3528: The ext[234] filesystem code fails to properly handle corrupted data structures. With a mounted filesystem image or partition that have corrupted dir->i_size and dir->i_blocks, a user performing either a read or write operation on the mounted image or partition can lead to a possible denial of service by spamming the logfile.

CVE-2007-6716: fs/direct-io.c in the dio subsystem in the Linux kernel did not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a certain fio test.

CVE-2008-3525: Added missing capability checks in sbni_ioctl().

CVE-2008-3272: Fixed range checking in the snd_seq OSS ioctl, which could be used to leak information from the kernel.

CVE-2008-3276: An integer overflow flaw was found in the Linux kernel dccp_setsockopt_change() function. An attacker may leverage this vulnerability to trigger a kernel panic on a victim's machine remotely.

CVE-2008-1673: Added range checking in ASN.1 handling for the CIFS and SNMP NAT netfilter modules.

CVE-2008-2826: A integer overflow in SCTP was fixed, which might have been used by remote attackers to crash the machine or potentially execute code.

CVE-2008-2812: Various NULL ptr checks have been added to tty op functions, which might have been used by local attackers to execute code. We think that this affects only devices openable by root, so the impact is limited.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2007-6716     Joe Jin reported a local denial of service vulnerability     that allows system users to trigger an oops due to an     improperly initialized data structure.

  - CVE-2008-1514     Jan Kratochvil reported a local denial of service     vulnerability in the ptrace interface for the s390     architecture. Local users can trigger an invalid pointer     dereference, leading to a system panic.

  - CVE-2008-3276     Eugene Teo reported an integer overflow in the DCCP     subsystem that may allow remote attackers to cause a     denial of service in the form of a kernel panic.

  - CVE-2008-3525     Eugene Teo reported a lack of capability checks in the     kernel driver for Granch SBNI12 leased line adapters     (sbni), allowing local users to perform privileged     operations.

  - CVE-2008-3833     The S_ISUID/S_ISGID bits were not being cleared during     an inode splice, which, under certain conditions, can be     exploited by local users to obtain the privileges of a     group for which they are not a member. Mark Fasheh     reported this issue.

  - CVE-2008-4210     David Watson reported an issue in the open()/creat()     system calls which, under certain conditions, can be     exploited by local users to obtain the privileges of a     group for which they are not a member.

  - CVE-2008-4302     A coding error in the splice subsystem allows local     users to attempt to unlock a page structure that has not     been locked, resulting in a system crash.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0972.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0885.

ID	Name	Product	Family	Severity
79448	OracleVM 2.1 : kernel (OVMSA-2008-2006)	Nessus	OracleVM Local Security Checks	high
67762	Oracle Linux 4 : kernel (ELSA-2008-0972)	Nessus	Oracle Linux Local Security Checks	medium
67747	Oracle Linux 5 : kernel (ELSA-2008-0885)	Nessus	Oracle Linux Local Security Checks	high
60497	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
60477	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
59134	SuSE 10 Security Update : Linux Kernel (x86_64) (ZYPP Patch Number 5735)	Nessus	SuSE Local Security Checks	medium
59132	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 5667)	Nessus	SuSE Local Security Checks	high
43710	CentOS 5 : kernel (CESA-2008:0885)	Nessus	CentOS Local Security Checks	high
41535	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 5668)	Nessus	SuSE Local Security Checks	high
37341	CentOS 4 : kernel (CESA-2008:0972)	Nessus	CentOS Local Security Checks	medium
36681	Ubuntu 6.06 LTS / 7.10 / 8.04 LTS : linux, linux-source-2.6.15/22 vulnerabilities (USN-659-1)	Nessus	Ubuntu Local Security Checks	high
35026	SuSE 10 Security Update : Linux Kernel (x86) (ZYPP Patch Number 5734)	Nessus	SuSE Local Security Checks	medium
34841	RHEL 4 : kernel (RHSA-2008:0972)	Nessus	Red Hat Local Security Checks	medium
34755	openSUSE 10 Security Update : kernel (kernel-5751)	Nessus	SuSE Local Security Checks	critical
34457	openSUSE 10 Security Update : kernel (kernel-5700)	Nessus	SuSE Local Security Checks	critical
34392	Debian DSA-1653-1 : linux-2.6 - denial of service/privilege escalation	Nessus	Debian Local Security Checks	high
34288	RHEL 5 : kernel (RHSA-2008:0885)	Nessus	Red Hat Local Security Checks	high
801459	CentOS RHSA-2008-0972 Security Check	Log Correlation Engine	Generic	high
801457	CentOS RHSA-2008-0885 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2007-6716

medium

Tenable Plugins

high

medium

high

medium

high

medium

high

high

high

medium

high

medium

medium

critical

critical

high

high

high

high