The minix filesystem did not properly validate certain filesystem values. If a local attacker could trick the system into attempting to mount a corrupted minix filesystem, the kernel could be made to hang for long periods of time, resulting in a denial of service.
(CVE-2006-6058)

Alexander Schulze discovered that the skge driver does not properly use the spin_lock and spin_unlock functions. Remote attackers could exploit this by sending a flood of network traffic and cause a denial of service (crash). (CVE-2006-7229)

Hugh Dickins discovered that hugetlbfs performed certain prio_tree calculations using HPAGE_SIZE instead of PAGE_SIZE. A local user could exploit this and cause a denial of service via kernel panic.
(CVE-2007-4133)

Chris Evans discovered an issue with certain drivers that use the ieee80211_rx function. Remote attackers could send a crafted 802.11 frame and cause a denial of service via crash. (CVE-2007-4997)

Alex Smith discovered an issue with the pwc driver for certain webcam devices. A local user with physical access to the system could remove the device while a userspace application had it open and cause the USB subsystem to block. (CVE-2007-5093)

Scott James Remnant discovered a coding error in ptrace. Local users could exploit this and cause the kernel to enter an infinite loop.
(CVE-2007-5500)

Venustech AD-LAB discovered a buffer overflow in the isdn net subsystem. This issue is exploitable by local users via crafted input to the isdn_ioctl function. (CVE-2007-6063)

It was discovered that the isdn subsystem did not properly check for NULL termination when performing ioctl handling. A local user could exploit this to cause a denial of service. (CVE-2007-6151)

Blake Frantz discovered that when a root process overwrote an existing core file, the resulting core file retained the previous core file's ownership. Local users could exploit this to gain access to sensitive information. (CVE-2007-6206)

Hugh Dickins discovered the when using the tmpfs filesystem, under rare circumstances, a kernel page may be improperly cleared. A local user may be able to exploit this and read sensitive kernel data or cause a denial of service via crash. (CVE-2007-6417)

Bill Roman discovered that the VFS subsystem did not properly check access modes. A local user may be able to gain removal privileges on directories. (CVE-2008-0001).

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-2008-1615: On x86_64 a denial of service attack could be used by local attackers to immediately panic / crash the machine.

CVE-2008-2358: A security problem in DCCP was fixed, which could be used by remote attackers to crash the machine.

CVE-2007-6206: An information leakage during coredumping of root processes was fixed.

CVE-2007-6712: A integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.

CVE-2008-2136: A problem in SIT IPv6 tunnel handling could be used by remote attackers to immediately crash the machine.

CVE-2008-1669: Fixed a SMP ordering problem in fcntl_setlk could potentially allow local attackers to execute code by timing file locking.

CVE-2008-1367: Clear the 'direction' flag before calling signal handlers. For specific not yet identified programs under specific timing conditions this could potentially have caused memory corruption or code execution.

CVE-2008-1375: Fixed a dnotify race condition, which could be used by local attackers to potentially execute code.

CVE-2007-6282: A remote attacker could crash the IPSec/IPv6 stack by sending a bad ESP packet. This requires the host to be able to receive such packets (default filtered by the firewall).

CVE-2007-5500: A ptrace bug could be used by local attackers to hang their own processes indefinitely.

CVE-2007-5904: A remote buffer overflow in CIFS was fixed which could be used by remote attackers to crash the machine or potentially execute code.

And the following bugs (numbers are https://bugzilla.novell.com/ references) :

  - patches.arch/x86-nosmp-implies-noapic.patch: When     booting with nosmp or maxcpus=0 on i386 or x86-64, we     must disable the I/O APIC, otherwise the system won't     boot in most cases (bnc#308540).

  - patches.arch/i386-at-sysinfo-ehdr: i386: make     AT_SYSINFO_EHDR consistent with AT_SYSINFO (bnc#289641).

  - patches.suse/bonding-workqueue: Update to fix a hang     when closing a bonding device (342994).

  - patches.fixes/mptspi-dv-renegotiate-oops: mptlinux     crashes on kernel 2.6.22 (bnc#271749).

Updated kernel packages that fix various security issues and several bugs are now available for Red Hat Enterprise Linux 3.

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

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

These updated packages fix the following security issues :

* the absence of a protection mechanism when attempting to access a critical section of code has been found in the Linux kernel open file descriptors control mechanism, fcntl. This could allow a local unprivileged user to simultaneously execute code, which would otherwise be protected against parallel execution. As well, a race condition when handling locks in the Linux kernel fcntl functionality, may have allowed a process belonging to a local unprivileged user to gain re-ordered access to the descriptor table. (CVE-2008-1669, Important)

* the absence of a protection mechanism when attempting to access a critical section of code, as well as a race condition, have been found in the Linux kernel file system event notifier, dnotify. This could allow a local unprivileged user to get inconsistent data, or to send arbitrary signals to arbitrary system processes. (CVE-2008-1375, Important)

Red Hat would like to thank Nick Piggin for responsibly disclosing the following issue :

* when accessing kernel memory locations, certain Linux kernel drivers registering a fault handler did not perform required range checks. A local unprivileged user could use this flaw to gain read or write access to arbitrary kernel memory, or possibly cause a kernel crash.
(CVE-2008-0007, Important)

* a flaw was found when performing asynchronous input or output operations on a FIFO special file. A local unprivileged user could use this flaw to cause a kernel panic. (CVE-2007-5001, Important)

* a flaw was found in the way core dump files were created. If a local user could get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file. This could potentially grant unauthorized access to sensitive information. (CVE-2007-6206, Moderate)

* a buffer overflow was found in the Linux kernel ISDN subsystem. A local unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6151, Moderate)

* a race condition found in the mincore system core could allow a local user to cause a denial of service (system hang). (CVE-2006-4814, Moderate)

* it was discovered that the Linux kernel handled string operations in the opposite way to the GNU Compiler Collection (GCC). This could allow a local unprivileged user to cause memory corruption.
(CVE-2008-1367, Low)

As well, these updated packages fix the following bugs :

* a bug, which caused long delays when unmounting mounts containing a large number of unused dentries, has been resolved.

* in the previous kernel packages, the kernel was unable to handle certain floating point instructions on Itanium(R) architectures.

* on certain Intel CPUs, the Translation Lookaside Buffer (TLB) was not flushed correctly, which caused machine check errors.

Red Hat Enterprise Linux 3 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
31093	Ubuntu 6.06 LTS : linux-source-2.6.15 vulnerabilities (USN-578-1)	Nessus	Ubuntu Local Security Checks	2008/2/14	2021/1/19	high
33252	openSUSE 10 Security Update : kernel (kernel-5336)	Nessus	SuSE Local Security Checks	2008/6/24	2021/1/14	high
32139	CentOS 3 : kernel (CESA-2008:0211)	Nessus	CentOS Local Security Checks	2008/5/9	2021/1/4	high

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