Memory leak in the PPP over Ethernet (PPPoE) socket implementation in the Linux kernel before 2.6.21-git8 allows local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized.

From Red Hat Security Advisory 2007:0488 :

Updated kernel packages that fix several security issues and bugs in the Red Hat Enterprise Linux 4 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.

These new kernel packages contain fixes for the security issues described below :

* a flaw in the connection tracking support for SCTP that allowed a remote user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-2876, Important)

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (crash). (CVE-2006-7203, Important)

* a flaw in the IPv4 forwarding base that allowed a local user to cause an out-of-bounds access. (CVE-2007-2172, Important)

* a flaw in the PPP over Ethernet implementation that allowed a local user to cause a denial of service (memory consumption) by creating a socket using connect and then releasing it before the PPPIOCGCHAN ioctl has been called. (CVE-2007-2525, Important)

* a flaw in the fput ioctl handling of 32-bit applications running on 64-bit platforms that allowed a local user to cause a denial of service (panic). (CVE-2007-0773, Important)

* a flaw in the NFS locking daemon that allowed a local user to cause denial of service (deadlock). (CVE-2006-5158, Moderate)

* a flaw in the sysfs_readdir function that allowed a local user to cause a denial of service by dereferencing a NULL pointer.
(CVE-2007-3104, Moderate)

* a flaw in the core-dump handling that allowed a local user to create core dumps from unreadable binaries via PT_INTERP. (CVE-2007-0958, Low)

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak. (CVE-2007-1353, Low)

In addition, the following bugs were addressed :

* the NFS could recurse on the same spinlock. Also, NFS, under certain conditions, did not completely clean up Posix locks on a file close, leading to mount failures.

* the 32bit compatibility didn't return to userspace correct values for the rt_sigtimedwait system call.

* the count for unused inodes could be incorrect at times, resulting in dirty data not being written to disk in a timely manner.

* the cciss driver had an incorrect disk size calculation (off-by-one error) which prevented disk dumps.

Red Hat would like to thank Ilja van Sprundel and the OpenVZ Linux kernel team for reporting issues fixed in this erratum.

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

From Red Hat Security Advisory 2007:0376 :

Updated kernel packages that fix security issues and bugs in the Red Hat Enterprise Linux 5 kernel are now available.

This update 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.

These new kernel packages contain fixes for the following security issues :

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (CVE-2006-7203, Important).

* a flaw in the PPP over Ethernet implementation that allowed a remote user to cause a denial of service (CVE-2007-2525, Important).

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak (CVE-2007-1353, Low).

* a bug in the random number generator that prevented the manual seeding of the entropy pool (CVE-2007-2453, Low).

In addition to the security issues described above, fixes for the following have been included :

* a race condition between ext3_link/unlink that could create an orphan inode list corruption.

* a bug in the e1000 driver that could lead to a watchdog timeout panic.

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

These new kernel packages contain fixes for the security issues described below :

  - a flaw in the connection tracking support for SCTP that     allowed a remote user to cause a denial of service by     dereferencing a NULL pointer. (CVE-2007-2876, Important)

  - a flaw in the mount handling routine for 64-bit systems     that allowed a local user to cause denial of service     (crash). (CVE-2006-7203, Important)

  - a flaw in the IPv4 forwarding base that allowed a local     user to cause an out-of-bounds access. (CVE-2007-2172,     Important)

  - a flaw in the PPP over Ethernet implementation that     allowed a local user to cause a denial of service     (memory consumption) by creating a socket using connect     and then releasing it before the PPPIOCGCHAN ioctl has     been called. (CVE-2007-2525, Important)

  - a flaw in the fput ioctl handling of 32-bit applications     running on 64-bit platforms that allowed a local user to     cause a denial of service (panic). (CVE-2007-0773,     Important)

  - a flaw in the NFS locking daemon that allowed a local     user to cause denial of service (deadlock).
    (CVE-2006-5158, Moderate)

  - a flaw in the sysfs_readdir function that allowed a     local user to cause a denial of service by dereferencing     a NULL pointer. (CVE-2007-3104, Moderate)

  - a flaw in the core-dump handling that allowed a local     user to create core dumps from unreadable binaries via     PT_INTERP. (CVE-2007-0958, Low)

  - a flaw in the Bluetooth subsystem that allowed a local     user to trigger an information leak. (CVE-2007-1353,     Low)

In addition, the following bugs were addressed :

  - the NFS could recurse on the same spinlock. Also, NFS,     under certain conditions, did not completely clean up     Posix locks on a file close, leading to mount failures.

  - the 32bit compatibility didn't return to userspace     correct values for the rt_sigtimedwait system call.

  - the count for unused inodes could be incorrect at times,     resulting in dirty data not being written to disk in a     timely manner.

  - the cciss driver had an incorrect disk size calculation     (off-by-one error) which prevented disk dumps.

NOTE1: From The Upstream Vendors release notes 'During PCI probing, Red Hat Enterprise Linux 4 Update 5 attempts to use information obtained from MCFG (memory-mapped PCI configuration space). On AMD-systems, this type of access does not work on some buses, as the kernel cannot parse the MCFG table.

To work around this, add the parameter pci=conf1 or pci=nommconf on the kernel boot line in /etc/grub.conf. For example :

title Red Hat Enterprise Linux AS (2.6.9-42.0.2.EL) root (hd0,0) kernel /vmlinuz-2.6.9-42.0.2.EL ro root=/dev/VolGroup00/LogVol00 rhgb quiet pci=conf1 initrd /initrd-2.6.9-42.0.2.EL.img

Doing this instructs the kernel to use PCI Conf1 access instead of MCFG-based access.'

NOTE2: From The Upstream Vendors Knowledge Base 'Why did the ordering of my NIC devices change in Red Hat Enterprise Linux 4.5?

The 2.6.9-55 version of the Red Hat Enterprise Linux 4 kernel (Update 5) reverts to the 2.4 ordering of network interface cards (NICs) on certain systems. Note that if the 'HWADDR=MAC ADDRESS' line is present in the /etc/sysconfig/network-scripts/ifcfg-ethX files, the NIC ordering will not change.

To restore the original 2.6 ordering, which is different from the 2.4 ordering, boot with the option pci=nobfsort '

a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (CVE-2006-7203, Important).

a flaw in the PPP over Ethernet implementation that allowed a remote user to cause a denial of service (CVE-2007-2525, Important).

a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak (CVE-2007-1353, Low).

a bug in the random number generator that prevented the manual seeding of the entropy pool (CVE-2007-2453, Low).

In addition to the security issues described above, fixes for the following have been included :

  - a race condition between ext3_link/unlink that could     create an orphan inode list corruption.

  - a bug in the e1000 driver that could lead to a watchdog     timeout panic.

This kernel update fixes the following security problems :

  - The IPv6 protocol allows remote attackers to cause a     denial of service via crafted IPv6 type 0 route headers     (IPV6_RTHDR_TYPE_0) that create network amplification     between two routers. (CVE-2007-2242)

    The default is that RH0 is disabled now. To adjust this,     write to the file /proc/net/accept_source_route6.

  - The random number feature in the Linux kernel 2.6 (1)     did not properly seed pools when there is no entropy, or     (2) used an incorrect cast when extracting entropy,     which might have caused the random number generator to     provide the same values after reboots on systems without     an entropy source. (CVE-2007-2453)

  - A NULL pointer dereference in SCTP connection tracking     could be caused by a remote attacker by sending     specially crafted packets. Note that this requires SCTP     set-up and active to be exploitable. (CVE-2007-2876)

  - Stack-based buffer overflow in the random number     generator (RNG) implementation in the Linux kernel     before 2.6.22 might allow local root users to cause a     denial of service or gain privileges by setting the     default wakeup threshold to a value greater than the     output pool size, which triggers writing random numbers     to the stack by the pool transfer function involving     'bound check ordering'. (CVE-2007-3105)

    Since this value can only be changed by a root user,     exploitability is low.

  - The signal handling in the Linux kernel, when run on     PowerPC systems using HTX, allows local users to cause a     denial of service via unspecified vectors involving     floating point corruption and concurrency.
    (CVE-2007-3107)

  - Memory leak in the PPP over Ethernet (PPPoE) socket     implementation in the Linux kernel allowed local users     to cause a denial of service (memory consumption) by     creating a socket using connect, and releasing it before     the PPPIOCGCHAN ioctl is initialized. (CVE-2007-2525)

  - The lcd_write function in drivers/usb/misc/usblcd.c in     the Linux kernel did not limit the amount of memory used     by a caller, which allowed local users to cause a denial     of service (memory consumption). (CVE-2007-3513)

  - A local attacker could send a death signal to a setuid     root program under certain conditions, potentially     causing unwanted behaviour in this program.
    (CVE-2007-3848)

  - On machines with a Intel i965 based graphics card local     users with access to the direct rendering devicenode     could overwrite memory on the machine and so gain root     privileges. (CVE-2007-3851)

  - Fixed a denial of service possibility where a local     attacker with access to a pwc camera device could hang     the USB subsystem. [#302194]

and the following non security bugs :

  - patches.arch/ppc-oprofile-970mp.patch: enable ppc64/970     MP, requires oprofile 0.9.3 [#252696]

  - patches.arch/x86_64-no-tsc-with-C3: don't use TSC on     x86_64 Intel systems when CPU has C3 [#254061]

  - patches.arch/x86_64-hpet-lost-interrupts-fix.patch:
    backport x86_64 hpet lost interrupts code [#257035]

  - patches.fixes/fusion-nat-consumption-fix: handle a     potential race in mptbase. This fixes a NaT consumption     crash [#257412]

  - patches.arch/ia64-skip-clock-calibration: enabled     [#259501]

  - patches.fixes/md-raid1-handle-read-error: Correctly     handle read errors from a failed drive in raid1     [#261459]

  - patches.arch/ia64-fix-kdump-on-init: kdump on INIT needs     multi-nodes sync-up (v.2) [#265764]

  - patches.arch/ia64-perfmon-fix-2: race condition between     pfm_context_create and pfm_read [#268131]

  - patches.fixes/cpufreq_ppc_boot_option.patch: workaround     for _PPC (BIOS cpufreq limitations) [#269579]

  - patches.arch/acpi_package_object_support.patch: ACPI     package object as method parameter support (in AML)     [#270956]

  - patches.fixes/ia64_cpufreq_PDC.patch: correctly assign     as cpufreq capable driver (_PDC) to BIOS [#270973]

  - patches.arch/ia64-kdump-hpzx1-ioc-workaround: update to     latest upstream version of the patch [#271158]

  - patches.suse/delayacct_memleak.patch: Fix delayacct     memory leak [#271187]

  - patches.fixes/fc_transport-check-portstate-before-scan:
    check FC portstates before invoking target scan     [#271338]

  - patches.fixes/unusual14cd.patch: quirk for 14cd:6600     [#274087]

  -     patches.fixes/reiserfs-change_generation_on_update_sd.di     ff: fix assertion failure in reiserfs [#274288]

  -     patches.drivers/d-link-dge-530t-should-use-the-skge-driv     er.patch: D-Link DGE-530T should use the skge driver     [#275376]

  - patches.arch/ia64-dont-unwind-running-tasks.patch: Only     unwind non-running tasks [#275854]

  - patches.fixes/dm-mpath-rdac-avt-support: short circuit     RDAC hardware handler in AVT mode [#277834]

  - patches.fixes/lkcd-re-enable-valid_phys_addr_range:
    re-enable the valid_phys_addr_range() check [#279433]

  - patches.drivers/cciss-panic-on-reboot: when root     filesystem is xfs the server cannot do a second reboot     [#279436] Also resolves same issue in [#291759].

  - patches.drivers/ide-hpt366-fix-302n-oops: fix hpt302n     oops [#279705]

  - patches.fixes/serial-8250-backup-timer-2-deadlock-fix:
    fix possible deadlock [#280771]

  - patches.fixes/nfs-osync-error-return: ensure proper     error return from O_SYNC writes [#280833]

  - patches.fixes/acpi_pci_hotplug_poweroff.patch: ACPI PCI     hotplug driver acpiphp unable to power off PCI slot     [#281234]

  -     patches.drivers/pci-hotplug-acpiphp-remove-hot-plug-para     meter-write-to-pci-host-bridge.patch: remove hot plug     parameter write to PCI host bridge [#281239]

  - patches.fixes/scsi-set-correct-resid: Incorrect 'resid'     field values when using a tape device [#281640]

  - patches.drivers/usb-edgeport-epic-support.patch: USB:
    add EPIC support to the io_edgeport driver [#281921]

  - patches.fixes/usb-hid-ncr-no-init-reports.patch: HID:
    Don't initialize reports for NCR devices [#281921]

  - patches.drivers/ppc-power6-ehea.patch: use decimal     values in sysfs propery logical_port_id, fix panic when     adding / removing logical eHEA ports [#283070]

  - patches.arch/ppc-power6-ebus.patch: DLPAR Adapter     add/remove functionality for eHEA [#283239]

  - patches.fixes/nfs-enospc: Return ENOSPC and EDQUOT to     NFS write requests more promptly [#284042]

  -     patches.drivers/pci-hotplug-acpiphp-avoid-acpiphp-cannot
    -get-bridge-info-pci-hotplug-failure.patch: PCI:
    hotplug: acpiphp: avoid acpiphp 'cannot get bridge info'     PCI hotplug failure [#286193]

  - patches.drivers/lpfc-8.1.10.9-update: lpfc update to     8.1.10.9 [#286223]

  - patches.fixes/make-swappiness-safer-to-use.patch: Handle     low swappiness gracefully [#288799]

  - patches.arch/ppc-oprofile-power5plusplus.patch: oprofile     support for Power 5++ [#289223]

  - patches.drivers/ppc-power6-ehea.patch: Fixed possible     kernel panic on VLAN packet recv [#289301]

  - patches.fixes/igrab_should_check_for_i_clear.patch:
    igrab() should check for I_CLEAR [#289576]

  - patches.fixes/wait_for_sysfs_population.diff: Driver     core: bus device event delay [#289964]

  -     patches.drivers/scsi-throttle-SG_DXFER_TO_FROM_DEV-warni     ng-better: better throttling of SG_DXFER_TO_FROM_DEV     warning messages [#290117]

  -     patches.arch/mark-unwind-info-for-signal-trampolines-in-     vdsos.patch: Mark unwind info for signal trampolines in     vDSOs [#291421]

  - patches.fixes/hugetlbfs-stack-grows-fix.patch: don't     allow the stack to grow into hugetlb reserved regions     [#294021]

  - patches.drivers/alsa-post-sp1-hda-analog-update: add     support of of missing AD codecs [#294471]

  - patches.drivers/alsa-post-sp1-hda-conexant-fixes: fix     unterminated arrays [#294480]

  - patches.fixes/fix_hpet_init_race.patch: fix a race in     HPET initialization on x86_64 resulting in a lockup on     boot [#295115]

  - patches.drivers/alsa-post-sp1-hda-sigmatel-pin-fix: Fix     number of pin widgets with STAC codecs [#295653]

  -     patches.fixes/pci-pcieport-driver-remove-invalid-warning
    -message.patch: PCI: pcieport-driver: remove invalid     warning message [#297135] [#298561]

  - patches.kernel.org/patch-2.6.16.NN-$((NN+1)), NN =     18,...,52: update to Kernel 2.6.16.53; lots of bugfixes     [#298719] [#186582] [#186583] [#186584]

  - patches.fixes/ocfs2-1.2-svn-r3027.diff: proactive patch     [#298845]

  - patches.drivers/b44-phy-fix: Fix frequent PHY resets     under load on b44 [#301653]

  - dd patches.arch/ppc-eeh-node-status-okay.patch firmware     returns 'okay' instead of 'ok' for node status [#301788]

Updated kernel packages that fix security issues and bugs in the Red Hat Enterprise Linux 5 kernel are now available.

This update 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.

These new kernel packages contain fixes for the following security issues :

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (CVE-2006-7203, Important).

* a flaw in the PPP over Ethernet implementation that allowed a remote user to cause a denial of service (CVE-2007-2525, Important).

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak (CVE-2007-1353, Low).

* a bug in the random number generator that prevented the manual seeding of the entropy pool (CVE-2007-2453, Low).

In addition to the security issues described above, fixes for the following have been included :

* a race condition between ext3_link/unlink that could create an orphan inode list corruption.

* a bug in the e1000 driver that could lead to a watchdog timeout panic.

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

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

  - CVE-2006-5823     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted cramfs filesystem.

  - CVE-2006-6054     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted ext2 filesystem.

  - CVE-2006-6058     LMH reported an issue in the minix filesystem that     allows local users with mount privileges to create a DoS     (printk flood) by mounting a specially crafted corrupt     filesystem.

  - CVE-2006-7203     OpenVZ Linux kernel team reported an issue in the smbfs     filesystem which can be exploited by local users to     cause a DoS (oops) during mount.

  - CVE-2007-1353     Ilja van Sprundel discovered that kernel memory could be     leaked via the Bluetooth setsockopt call due to an     uninitialized stack buffer. This could be used by local     attackers to read the contents of sensitive kernel     memory.

  - CVE-2007-2172     Thomas Graf reported a typo in the DECnet protocol     handler that could be used by a local attacker to     overrun an array via crafted packets, potentially     resulting in a Denial of Service (system crash). A     similar issue exists in the IPV4 protocol handler and     will be fixed in a subsequent update.

  - CVE-2007-2525     Florian Zumbiehl discovered a memory leak in the PPPOE     subsystem caused by releasing a socket before     PPPIOCGCHAN is called upon it. This could be used by a     local user to DoS a system by consuming all available     memory.

  - CVE-2007-3105     The PaX Team discovered a potential buffer overflow in     the random number generator which may permit local users     to cause a denial of service or gain additional     privileges. This issue is not believed to effect default     Debian installations where only root has sufficient     privileges to exploit it.

  - CVE-2007-3739     Adam Litke reported a potential local denial of service     (oops) on powerpc platforms resulting from unchecked VMA     expansion into address space reserved for hugetlb pages.

  - CVE-2007-3740     Steve French reported that CIFS filesystems with     CAP_UNIX enabled were not honoring a process' umask     which may lead to unintentionally relaxed permissions.

  - CVE-2007-3848     Wojciech Purczynski discovered that pdeath_signal was     not being reset properly under certain conditions which     may allow local users to gain privileges by sending     arbitrary signals to suid binaries.

  - CVE-2007-4133     Hugh Dickins discovered a potential local DoS (panic) in     hugetlbfs. A misconversion of hugetlb_vmtruncate_list to     prio_tree may allow local users to trigger a BUG_ON()     call in exit_mmap.

  - CVE-2007-4308     Alan Cox reported an issue in the aacraid driver that     allows unprivileged local users to make ioctl calls     which should be restricted to admin privileges.

  - CVE-2007-4573     Wojciech Purczynski discovered a vulnerability that can     be exploited by a local user to obtain superuser     privileges on x86_64 systems. This resulted from     improper clearing of the high bits of registers during     ia32 system call emulation. This vulnerability is     relevant to the Debian amd64 port as well as users of     the i386 port who run the amd64 linux-image flavour.

  - CVE-2007-5093     Alex Smith discovered an issue with the pwc driver for     certain webcam devices. If the device is removed while a     userspace application has it open, the driver will wait     for userspace to close the device, resulting in a     blocked USB subsystem. This issue is of low security     impact as it requires the attacker to either have     physical access to the system or to convince a user with     local access to remove the device on their behalf.

  - CVE-2007-6063     Venustech AD-LAB discovered a a buffer overflow in the     isdn ioctl handling, exploitable by a local user.

  - CVE-2007-6151     ADLAB discovered a possible memory overrun in the ISDN     subsystem that may permit a local user to overwrite     kernel memory by issuing ioctls with unterminated data.

  - CVE-2007-6206     Blake Frantz discovered that when a core file owned by a     non-root user exists, and a root-owned process dumps     core over it, the core file retains its original     ownership. This could be used by a local user to gain     access to sensitive information.

  - CVE-2007-6694     Cyrill Gorcunov reported a NULL pointer dereference in     code specific to the CHRP PowerPC platforms. Local users     could exploit this issue to achieve a Denial of Service     (DoS).

  - CVE-2008-0007     Nick Piggin of SuSE discovered a number of issues in     subsystems which register a fault handler for memory     mapped areas. This issue can be exploited by local users     to achieve a Denial of Service (DoS) and possibly     execute arbitrary code.

The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update :

                             Debian 3.1 (sarge)            kernel-image-2.6.8-alpha    2.6.8-17sarge1                kernel-image-2.6.8-amd64    2.6.8-17sarge1                kernel-image-2.6.8-hppa     2.6.8-7sarge1                 kernel-image-2.6.8-i386     2.6.8-17sarge1                kernel-image-2.6.8-ia64     2.6.8-15sarge1                kernel-image-2.6.8-m68k     2.6.8-5sarge1                 kernel-image-2.6.8-s390     2.6.8-6sarge1                 kernel-image-2.6.8-sparc    2.6.8-16sarge1                kernel-patch-powerpc-2.6.8  2.6.8-13sarge1                fai-kernels                 1.9.1sarge8

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

  - CVE-2004-2731     infamous41md reported multiple integer overflows in the     Sbus PROM driver that would allow for a DoS (Denial of     Service) attack by a local user, and possibly the     execution of arbitrary code.

  - CVE-2006-4814     Doug Chapman discovered a potential local DoS (deadlock)     in the mincore function caused by improper lock     handling.

  - CVE-2006-5753     Eric Sandeen provided a fix for a local memory     corruption vulnerability resulting from a     misinterpretation of return values when operating on     inodes which have been marked bad.

  - CVE-2006-5823     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted cramfs filesystem.

  - CVE-2006-6053     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted ext3 filesystem.

  - CVE-2006-6054     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted ext2 filesystem.

  - CVE-2006-6106     Marcel Holtman discovered multiple buffer overflows in     the Bluetooth subsystem which can be used to trigger a     remote DoS (crash) and potentially execute arbitrary     code.

  - CVE-2007-1353     Ilja van Sprundel discovered that kernel memory could be     leaked via the Bluetooth setsockopt call due to an     uninitialized stack buffer. This could be used by local     attackers to read the contents of sensitive kernel     memory.

  - CVE-2007-1592     Masayuki Nakagawa discovered that flow labels were     inadvertently being shared between listening sockets and     child sockets. This defect can be exploited by local     users to cause a DoS (Oops).

  - CVE-2007-2172     Thomas Graf reported a typo in the DECnet protocol     handler that could be used by a local attacker to     overrun an array via crafted packets, potentially     resulting in a Denial of Service (system crash). A     similar issue exists in the IPV4 protocol handler and     will be fixed in a subsequent update.

  - CVE-2007-2525     Florian Zumbiehl discovered a memory leak in the PPPOE     subsystem caused by releasing a socket before     PPPIOCGCHAN is called upon it. This could be used by a     local user to DoS a system by consuming all available     memory.

  - CVE-2007-3848     Wojciech Purczynski discovered that pdeath_signal was     not being reset properly under certain conditions which     may allow local users to gain privileges by sending     arbitrary signals to suid binaries.

  - CVE-2007-4308     Alan Cox reported an issue in the aacraid driver that     allows unprivileged local users to make ioctl calls     which should be restricted to admin privileges.

  - CVE-2007-4311     PaX team discovered an issue in the random driver where     a defect in the reseeding code leads to a reduction in     entropy.

  - CVE-2007-5093     Alex Smith discovered an issue with the pwc driver for     certain webcam devices. If the device is removed while a     userspace application has it open, the driver will wait     for userspace to close the device, resulting in a     blocked USB subsystem. This issue is of low security     impact as it requires the attacker to either have     physical access to the system or to convince a user with     local access to remove the device on their behalf.

  - CVE-2007-6063     Venustech AD-LAB discovered a a buffer overflow in the     isdn ioctl handling, exploitable by a local user.

  - CVE-2007-6151     ADLAB discovered a possible memory overrun in the ISDN     subsystem that may permit a local user to overwrite     kernel memory by issuing ioctls with unterminated data.

  - CVE-2007-6206     Blake Frantz discovered that when a core file owned by a     non-root user exists, and a root-owned process dumps     core over it, the core file retains its original     ownership. This could be used by a local user to gain     access to sensitive information.

  - CVE-2007-6694     Cyrill Gorcunov reported a NULL pointer dereference in     code specific to the CHRP PowerPC platforms. Local users     could exploit this issue to achieve a Denial of Service     (DoS).

  - CVE-2008-0007     Nick Piggin of SuSE discovered a number of issues in     subsystems which register a fault handler for memory     mapped areas. This issue can be exploited by local users     to achieve a Denial of Service (DoS) and possibly     execute arbitrary code.

The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update :

                              Debian 3.1 (sarge)             alsa-modules-i386            1.0.8+2sarge2                  kernel-image-2.4.27-arm      2.4.27-2sarge6                 kernel-image-2.4.27-m68k     2.4.27-3sarge6                 kernel-image-speakup-i386    2.4.27-1.1sarge5               kernel-image-2.4.27-alpha    2.4.27-10sarge6                kernel-image-2.4.27-s390     2.4.27-2sarge6                 kernel-image-2.4.27-sparc    2.4.27-9sarge6                 kernel-image-2.4.27-i386     2.4.27-10sarge6                kernel-image-2.4.27-ia64     2.4.27-10sarge6                kernel-patch-2.4.27-mips     2.4.27-10.sarge4.040815-3      kernel-patch-powerpc-2.4.27  2.4.27-10sarge6                kernel-latest-2.4-alpha      101sarge3                      kernel-latest-2.4-i386       101sarge2                      kernel-latest-2.4-s390       2.4.27-1sarge2                 kernel-latest-2.4-sparc      42sarge3                       i2c                          1:2.9.1-1sarge2                lm-sensors                   1:2.9.1-1sarge4                mindi-kernel                 2.4.27-2sarge5                 pcmcia-modules-2.4.27-i386   3.2.5+2sarge2                  hostap-modules-i386          1:0.3.7-1sarge3                systemimager                 3.2.3-6sarge5

A flaw was discovered in the PPP over Ethernet implementation. Local attackers could manipulate ioctls and cause kernel memory consumption leading to a denial of service. (CVE-2007-2525)

An integer underflow was discovered in the cpuset filesystem. If mounted, local attackers could obtain kernel memory using large file offsets while reading the tasks file. This could disclose sensitive data. (CVE-2007-2875)

Vilmos Nebehaj discovered that the SCTP netfilter code did not correctly validate certain states. A remote attacker could send a specially crafted packet causing a denial of service. (CVE-2007-2876)

Luca Tettamanti discovered a flaw in the VFAT compat ioctls on 64-bit systems. A local attacker could corrupt a kernel_dirent struct and cause a denial of service. (CVE-2007-2878)

A flaw in the sysfs_readdir function allowed a local user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-3104)

A buffer overflow was discovered in the random number generator. In environments with granular assignment of root privileges, a local attacker could gain additional privileges. (CVE-2007-3105)

A flaw was discovered in the usblcd driver. A local attacker could cause large amounts of kernel memory consumption, leading to a denial of service. (CVE-2007-3513)

Zhongling Wen discovered that the h323 conntrack handler did not correctly handle certain bitfields. A remote attacker could send a specially crafted packet and cause a denial of service.
(CVE-2007-3642)

A flaw was discovered in the CIFS mount security checking. Remote attackers could spoof CIFS network traffic, which could lead a client to trust the connection. (CVE-2007-3843)

It was discovered that certain setuid-root processes did not correctly reset process death signal handlers. A local user could manipulate this to send signals to processes they would not normally have access to. (CVE-2007-3848)

The Direct Rendering Manager for the i915 driver could be made to write to arbitrary memory locations. An attacker with access to a running X11 session could send a specially crafted buffer and gain root privileges. (CVE-2007-3851)

It was discovered that the aacraid SCSI driver did not correctly check permissions on certain ioctls. A local attacker could cause a denial of service or gain privileges. (CVE-2007-4308).

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.

A flaw was discovered in dvb ULE decapsulation. A remote attacker could send a specially crafted message and cause a denial of service.
(CVE-2006-4623)

The compat_sys_mount function allowed local users to cause a denial of service when mounting a smbfs filesystem in compatibility mode.
(CVE-2006-7203)

The Omnikey CardMan 4040 driver (cm4040_cs) did not limit the size of buffers passed to read() and write(). A local attacker could exploit this to execute arbitrary code with kernel privileges. (CVE-2007-0005)

Due to an variable handling flaw in the ipv6_getsockopt_sticky() function a local attacker could exploit the getsockopt() calls to read arbitrary kernel memory. This could disclose sensitive data.
(CVE-2007-1000)

Ilja van Sprundel discovered that Bluetooth setsockopt calls could leak kernel memory contents via an uninitialized stack buffer. A local attacker could exploit this flaw to view sensitive kernel information.
(CVE-2007-1353)

A flaw was discovered in the handling of netlink messages. Local attackers could cause infinite recursion leading to a denial of service. (CVE-2007-1861)

The random number generator was hashing a subset of the available entropy, leading to slightly less random numbers. Additionally, systems without an entropy source would be seeded with the same inputs at boot time, leading to a repeatable series of random numbers.
(CVE-2007-2453)

A flaw was discovered in the PPP over Ethernet implementation. Local attackers could manipulate ioctls and cause kernel memory consumption leading to a denial of service. (CVE-2007-2525)

An integer underflow was discovered in the cpuset filesystem. If mounted, local attackers could obtain kernel memory using large file offsets while reading the tasks file. This could disclose sensitive data. (CVE-2007-2875)

Vilmos Nebehaj discovered that the SCTP netfilter code did not correctly validate certain states. A remote attacker could send a specially crafted packet causing a denial of service. (CVE-2007-2876)

Luca Tettamanti discovered a flaw in the VFAT compat ioctls on 64-bit systems. A local attacker could corrupt a kernel_dirent struct and cause a denial of service. (CVE-2007-2878)

A flaw was discovered in the cluster manager. A remote attacker could connect to the DLM port and block further DLM operations.
(CVE-2007-3380)

A flaw was discovered in the usblcd driver. A local attacker could cause large amounts of kernel memory consumption, leading to a denial of service. (CVE-2007-3513).

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 compat_sys_mount function allowed local users to cause a denial of service when mounting a smbfs filesystem in compatibility mode.
(CVE-2006-7203)

The Omnikey CardMan 4040 driver (cm4040_cs) did not limit the size of buffers passed to read() and write(). A local attacker could exploit this to execute arbitrary code with kernel privileges. (CVE-2007-0005)

Due to a variable handling flaw in the ipv6_getsockopt_sticky() function a local attacker could exploit the getsockopt() calls to read arbitrary kernel memory. This could disclose sensitive data.
(CVE-2007-1000)

Ilja van Sprundel discovered that Bluetooth setsockopt calls could leak kernel memory contents via an uninitialized stack buffer. A local attacker could exploit this flaw to view sensitive kernel information.
(CVE-2007-1353)

A flaw was discovered in the handling of netlink messages. Local attackers could cause infinite recursion leading to a denial of service. (CVE-2007-1861)

A flaw was discovered in the IPv6 stack's handling of type 0 route headers. By sending a specially crafted IPv6 packet, a remote attacker could cause a denial of service between two IPv6 hosts.
(CVE-2007-2242)

The random number generator was hashing a subset of the available entropy, leading to slightly less random numbers. Additionally, systems without an entropy source would be seeded with the same inputs at boot time, leading to a repeatable series of random numbers.
(CVE-2007-2453)

A flaw was discovered in the PPP over Ethernet implementation. Local attackers could manipulate ioctls and cause kernel memory consumption leading to a denial of service. (CVE-2007-2525)

An integer underflow was discovered in the cpuset filesystem. If mounted, local attackers could obtain kernel memory using large file offsets while reading the tasks file. This could disclose sensitive data. (CVE-2007-2875)

Vilmos Nebehaj discovered that the SCTP netfilter code did not correctly validate certain states. A remote attacker could send a specially crafted packet causing a denial of service. (CVE-2007-2876)

Luca Tettamanti discovered a flaw in the VFAT compat ioctls on 64-bit systems. A local attacker could corrupt a kernel_dirent struct and cause a denial of service. (CVE-2007-2878).

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.

This kernel update fixes the following security problems :

  - CVE-2007-3105: Stack-based buffer overflow in the random     number generator (RNG) implementation in the Linux     kernel before 2.6.22 might allow local root users to     cause a denial of service or gain privileges by setting     the default wake-up threshold to a value greater than     the output pool size, which triggers writing random     numbers to the stack by the pool transfer function     involving 'bound check ordering'. Since this value can     only be changed by a root user, exploitability is low.

  - CVE-2007-2525: A memory leak in the PPPoE driver can be     abused by local users to cause a denial-of-service     condition.

  - CVE-2007-3851: On machines with a Intel i965 based     graphics card local users with access to the direct     rendering devicenode could overwrite memory on the     machine and so gain root privileges.

  - CVE-2007-4573: It was possible for local user to become     root by exploitable a bug in the IA32 system call     emulation. This affects x86_64 platforms with kernel     2.4.x and 2.6.x before 2.6.22.7 only.

  - CVE-2007-4571: An information disclosure vulnerability     in the ALSA driver can be exploited by local users to     read sensitive data from the kernel memory.

and the following non security bugs :

    - patches.arch/x86-fam10-mtrr: mtrr: fix size_or_mask       and size_and_mask [#237736]

    - patches.fixes/usb_nokia6233_fix1.patch: usb:
      rndis_host: fix crash while probing a Nokia S60 mobile       [#244459]

    - patches.fixes/usb_nokia6233_fix2.patch: usbnet: init       fault (oops) cleanup, whitespace fixes [#244459]

    - patches.fixes/usb_nokia6233_fix2.patch: usb:
      unusual_devs.h entry for Nokia 6233 [#244459]

    - patches.fixes/bt_broadcom_reset.diff: quirky Broadcom       device [#257303]

    - patches.arch/i386-compat-vdso: i386: allow debuggers       to access the vsyscall page with compat vDSO [#258433]

  - -     patches.fixes/anycast6-unbalanced-inet6_dev-refcnt.patch     : Fix netdevice reference leak when reading from     /proc/net/anycast6 [#285336]

  - -     patches.drivers/scsi-throttle-SG_DXFER_TO_FROM_DEV-warni     ng-b etter: SCSI: throttle SG_DXFER_TO_FROM_DEV warning     message better [#290117]

  - -     patches.fixes/nf_conntrack_h323-out-of-bounds-index.diff     : nf_conntrack_h323: add checking of out-of-range on     choices' index values [#290611]

    - patches.fixes/ppc-fpu-corruption-fix.diff: ppc: fix       corruption of fpu [#290622]

  - -     patches.fixes/ppp-fix-osize-too-small-errors-when-decodi     ng-m ppe.diff: ppp: Fix osize too small errors when     decoding mppe [#291102]

    - patches.fixes/hugetlbfs-stack-grows-fix.patch: Don't       allow the stack to grow into hugetlb reserved regions       [#294021]

    - patches.fixes/pwc_dos.patch: fix a disconnect method       waiting for user space to close a file. A malicious       user can stall khubd indefinitely long [#302063]       [#302194]

    - patches.suse/kdb.add-unwind-info-to-kdb_call: Add       unwind info to kdb_call() to fix build of KDB kernel       on i386 [#305209]

    - Updated config files: enable KDB for kernel-debug on       i386. [#305209]

This kernel update brings the kernel to the one shipped with SLES 10 Service Pack 1 and also fixes the following security problems:

- CVE-2007-2242: The IPv6 protocol allows remote attackers   to cause a denial of service via crafted IPv6 type 0   route headers (IPV6_RTHDR_TYPE_0) that create network   amplification between two routers. 

  The default is that RH0 is disabled now. To adjust this, write to the file /proc/net/accept_source_route6.

- CVE-2007-2453: The random number feature in the Linux   kernel 2.6 (1) did not properly seed pools when there is   no entropy, or (2) used an incorrect cast when extracting   entropy, which might have caused the random number   generator to provide the same values after reboots on   systems without an entropy source.

- CVE-2007-2876: A NULL pointer dereference in SCTP   connection tracking could be caused by a remote attacker   by sending specially crafted packets. Note that this   requires SCTP set-up and active to be exploitable.

- CVE-2007-3105: Stack-based buffer overflow in the random   number generator (RNG) implementation in the Linux kernel   before 2.6.22 might allow local root users to cause a   denial of service or gain privileges by setting the   default wakeup threshold to a value greater than the   output pool size, which triggers writing random numbers   to the stack by the pool transfer function involving   'bound check ordering'.

  Since this value can only be changed by a root user, exploitability is low.

- CVE-2007-3107: The signal handling in the Linux kernel,   when run on PowerPC systems using HTX, allows local users   to cause a denial of service via unspecified vectors   involving floating point corruption and concurrency.

- CVE-2007-2525: Memory leak in the PPP over Ethernet   (PPPoE) socket implementation in the Linux kernel allowed   local users to cause a denial of service (memory   consumption) by creating a socket using connect, and   releasing it before the PPPIOCGCHAN ioctl is initialized.

- CVE-2007-3513: The lcd_write function in   drivers/usb/misc/usblcd.c in the Linux kernel did not   limit the amount of memory used by a caller, which   allowed local users to cause a denial of service (memory   consumption).

- CVE-2007-3851: On machines with a Intel i965 based   graphics card local users with access to the direct   rendering devicenode could overwrite memory on the   machine and so gain root privileges.

This kernel is not compatible to the previous SUSE Linux 10.1 kernel, so the Kernel Module Packages will need to be updated.

Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

The Linux kernel did not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allowed local users to cause a denial of service (process crash) (CVE-2006-5755).

The compat_sys_mount function in fs/compat.c allowed local users to cause a denial of service (NULL pointer dereference and oops) by mounting a smbfs file system in compatibility mode (CVE-2006-7203).

The nfnetlink_log function in netfilter allowed an attacker to cause a denial of service (crash) via unspecified vectors which would trigger a NULL pointer dereference (CVE-2007-1496).

The nf_conntrack function in netfilter did not set nfctinfo during reassembly of fragmented packets, which left the default value as IP_CT_ESTABLISHED and could allow remote attackers to bypass certain rulesets using IPv6 fragments (CVE-2007-1497).

The netlink functionality did not properly handle NETLINK_FIB_LOOKUP replies, which allowed a remote attacker to cause a denial of service (resource consumption) via unspecified vectors, probably related to infinite recursion (CVE-2007-1861).

A typo in the Linux kernel caused RTA_MAX to be used as an array size instead of RTN_MAX, which lead to an out of bounds access by certain functions (CVE-2007-2172).

The IPv6 protocol allowed remote attackers to cause a denial of service via crafted IPv6 type 0 route headers that create network amplification between two routers (CVE-2007-2242).

The random number feature did not properly seed pools when there was no entropy, or used an incorrect cast when extracting entropy, which could cause the random number generator to provide the same values after reboots on systems without an entropy source (CVE-2007-2453).

A memory leak in the PPPoE socket implementation allowed local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized (CVE-2007-2525).

An integer underflow in the cpuset_tasks_read function, when the cpuset filesystem is mounted, allowed local users to obtain kernel memory contents by using a large offset when reading the /dev/cpuset/tasks file (CVE-2007-2875).

The sctp_new function in netfilter allowed remote attackers to cause a denial of service by causing certain invalid states that triggered a NULL pointer dereference (CVE-2007-2876).

In addition to these security fixes, other fixes have been included such as :

  - Fix crash on netfilter when nfnetlink_log is used on     certain hooks on packets forwarded to or from a bridge

  - Fixed busy sleep on IPVS which caused high load averages

    - Fixed possible race condition on ext[34]_link

    - Fixed missing braces in condition block that led to       wrong behaviour in NFS

  - Fixed XFS lock deallocation that resulted in oops when     unmounting

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

http://www.mandriva.com/en/security/kernelupdate

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

  - CVE-2007-1353     Ilja van Sprundel discovered that kernel memory could be     leaked via the Bluetooth setsockopt call due to an     uninitialized stack buffer. This could be used by local     attackers to read the contents of sensitive kernel     memory.

  - CVE-2007-2172     Thomas Graf reported a typo in the DECnet protocol     handler that could be used by a local attacker to     overrun an array via crafted packets, potentially     resulting in a Denial of Service (system crash). A     similar issue exists in the IPV4 protocol handler and     will be fixed in a subsequent update.

  - CVE-2007-2453     A couple of issues with random number generation were     discovered. Slightly less random numbers resulted from     hashing a subset of the available entropy. Zero-entropy     systems were seeded with the same inputs at boot time,     resulting in repeatable series of random numbers.

  - CVE-2007-2525     Florian Zumbiehl discovered a memory leak in the PPPOE     subsystem caused by releasing a socket before     PPPIOCGCHAN is called upon it. This could be used by a     local user to DoS a system by consuming all available     memory.

  - CVE-2007-2876     Vilmos Nebehaj discovered a NULL pointer dereference     condition in the netfilter subsystem. This allows remote     systems which communicate using the SCTP protocol to     crash a system by creating a connection with an unknown     chunk type.

  - CVE-2007-3513     Oliver Neukum reported an issue in the usblcd driver     which, by not limiting the size of write buffers,     permits local users with write access to trigger a DoS     by consuming all available memory.

  - CVE-2007-3642     Zhongling Wen reported an issue in nf_conntrack_h323     where the lack of range checking may lead to NULL     pointer dereferences. Remote attackers could exploit     this to create a DoS condition (system crash).

  - CVE-2007-3848     Wojciech Purczynski discovered that pdeath_signal was     not being reset properly under certain conditions which     may allow local users to gain privileges by sending     arbitrary signals to suid binaries.

  - CVE-2007-3851     Dave Airlie reported that Intel 965 and above chipsets     have relocated their batch buffer security bits. Local X     server users may exploit this to write user data to     arbitrary physical memory addresses.

These problems have been fixed in the stable distribution in version 2.6.18.dfsg.1-13etch1.

The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update :

                    Debian 4.0 (etch)    fai-kernels        1.17+etch4           user-mode-linux    2.6.18-1um-2etch3

Updated kernel packages that fix several security issues and bugs in the Red Hat Enterprise Linux 4 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.

These new kernel packages contain fixes for the security issues described below :

* a flaw in the connection tracking support for SCTP that allowed a remote user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-2876, Important)

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (crash). (CVE-2006-7203, Important)

* a flaw in the IPv4 forwarding base that allowed a local user to cause an out-of-bounds access. (CVE-2007-2172, Important)

* a flaw in the PPP over Ethernet implementation that allowed a local user to cause a denial of service (memory consumption) by creating a socket using connect and then releasing it before the PPPIOCGCHAN ioctl has been called. (CVE-2007-2525, Important)

* a flaw in the fput ioctl handling of 32-bit applications running on 64-bit platforms that allowed a local user to cause a denial of service (panic). (CVE-2007-0773, Important)

* a flaw in the NFS locking daemon that allowed a local user to cause denial of service (deadlock). (CVE-2006-5158, Moderate)

* a flaw in the sysfs_readdir function that allowed a local user to cause a denial of service by dereferencing a NULL pointer.
(CVE-2007-3104, Moderate)

* a flaw in the core-dump handling that allowed a local user to create core dumps from unreadable binaries via PT_INTERP. (CVE-2007-0958, Low)

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak. (CVE-2007-1353, Low)

In addition, the following bugs were addressed :

* the NFS could recurse on the same spinlock. Also, NFS, under certain conditions, did not completely clean up Posix locks on a file close, leading to mount failures.

* the 32bit compatibility didn't return to userspace correct values for the rt_sigtimedwait system call.

* the count for unused inodes could be incorrect at times, resulting in dirty data not being written to disk in a timely manner.

* the cciss driver had an incorrect disk size calculation (off-by-one error) which prevented disk dumps.

Red Hat would like to thank Ilja van Sprundel and the OpenVZ Linux kernel team for reporting issues fixed in this erratum.

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

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2007-0488.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2007-0376.

ID	Name	Product	Family	Severity
67520	Oracle Linux 4 : kernel (ELSA-2007-0488)	Nessus	Oracle Linux Local Security Checks	medium
67502	Oracle Linux 5 : kernel (ELSA-2007-0376)	Nessus	Oracle Linux Local Security Checks	medium
60215	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
60209	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
59123	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 4186)	Nessus	SuSE Local Security Checks	high
43642	CentOS 5 : kernel (CESA-2007:0376)	Nessus	CentOS Local Security Checks	medium
31148	Debian DSA-1504-1 : kernel-source-2.6.8 - several vulnerabilities	Nessus	Debian Local Security Checks	high
31147	Debian DSA-1503-1 : kernel-source-2.4.27 - several vulnerabilities	Nessus	Debian Local Security Checks	high
29487	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 4185)	Nessus	SuSE Local Security Checks	high
28114	Ubuntu 7.04 : linux-source-2.6.20 vulnerabilities (USN-510-1)	Nessus	Ubuntu Local Security Checks	high
28090	Ubuntu 6.06 LTS : linux-source-2.6.15 vulnerability (USN-489-1)	Nessus	Ubuntu Local Security Checks	high
28087	Ubuntu 6.10 : linux-source-2.6.17 vulnerabilities (USN-486-1)	Nessus	Ubuntu Local Security Checks	high
27298	openSUSE 10 Security Update : kernel (kernel-4487)	Nessus	SuSE Local Security Checks	high
27296	SuSE Security Update: Kernel Update for SUSE Linux 10.1 (kernel-4193)	Nessus	SuSE Local Security Checks	high
25968	Mandrake Linux Security Advisory : kernel (MDKSA-2007:171)	Nessus	Mandriva Local Security Checks	high
25909	Debian DSA-1356-1 : linux-2.6 - several vulnerabilities	Nessus	Debian Local Security Checks	high
25605	RHEL 4 : kernel (RHSA-2007:0488)	Nessus	Red Hat Local Security Checks	medium
25575	CentOS 4 : kernel (CESA-2007:0488)	Nessus	CentOS Local Security Checks	medium
25538	RHEL 5 : kernel (RHSA-2007:0376)	Nessus	Red Hat Local Security Checks	medium
801431	CentOS RHSA-2007-0488 Security Check	Log Correlation Engine	Generic	high
801429	CentOS RHSA-2007-0376 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2007-2525

medium

Tenable Plugins

medium

medium

medium

medium

high

medium

high

high

high

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high

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high

medium

medium

medium

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high