Multiple vulnerabilities in the Linux 2.6 kernel have been discovered and corrected in this update :

An integer overflow in vc_resize (CVE-2004-1333).

A race condition in the sysfs_read_file and sysfs_write_file functions in 2.6.10 and earlier allows local users to read kernel memory and cause a DoS (crash) via large offsets in sysfs files (CVE-2004-2302).

An integer signedness error in scsi_ioctl.c (CVE-2005-0180).

Netfilter allows a local user to cause a DoS (memory consumption) via certain packet fragments that are reassembled twice, which causes a data structure to be allocated twice (CVE-2005-0210).

A DoS in pkt_ioctl in pktcdvc.c (CVE-2005-1589).

An array index overflow in the xfrm_sk_policy_insert function in xfrm_user.c allows local users to cause a DoS (oops or deadlock) and possibly execute arbitrary code (CVE-2005-2456).

The zisofs driver in versions prior to 2.6.12.5 allows local users and remove attackers to cause a DoS (crash) via a crafted compressed ISO filesystem (CVE-2005-2457).

inflate.c in the zlib routines in versions prior to 2.6.12.5 allow remove attackers to cause a DoS (crash) via a compressed file with 'improper tables' (CVE-2005-2458).

The huft_build function in inflate.c in the zlib routines in versions prior to 2.6.12.5 returns the wrong value, allowing remote attackers to cause a DoS (crash) via a certain compressed file that leads to a NULL pointer dereference (CVE-2005-2459).

A stack-based buffer overflow in the sendmsg function call in versions prior to 2.6.13.1 allow local users to execute arbitrary code by calling sendmsg and modifying the message contents in another thread (CVE-2005-2490).

vlan_dev.c in version 2.6.8 allows remote attackers to cause a DoS (oops from null dereference) via certain UDP packets that lead to a function call with the wrong argument (CVE-2005-2548).

The kernel does not properly restrict socket policy access to users with the CAP_NET_ADMIN capability, which could allow local users to conduct unauthorized activities via ipv4/ip_sockglue.c and ipv6/ipv6_sockglue.c (CVE-2005-2555).

A memory leak in the seq_file implementation in the SCSI procfs interface (sg.c) in 2.6.13 and earlier allows a local user to cause a DoS (memory consumption) via certain repeated reads from /proc/scsi/gs/devices file which is not properly handled when the next() interator returns NULL or an error (CVE-2005-2800).

xattr.c in the ext2 and ext3 file system code does not properly compare the name_index fields when sharing xattr blocks which could prevent ACLs from being applied (CVE-2005-2801).

The ipt_recent module in versions prior to 2.6.12 when running on 64bit processors allows remote attackers to cause a DoS (kernel panic) via certain attacks such as SSH brute force (CVE-2005-2872).

The ipt_recent module in versions prior to 2.6.12 does not properly perform certain tests when the jiffies value is greater than LONG_MAX, which can cause ipt_recent netfilter rules to block too early (CVE-2005-2873).

Multiple vulnerabilities in versions prior to 2.6.13.2 allow local users to cause a DoS (oops from null dereference) via fput in a 32bit ioctl on 64-bit x86 systems or sockfd_put in the 32-bit routing_ioctl function on 64-bit systems (CVE-2005-3044).

The sys_set_mempolicy function in mempolicy.c allows local users to cause a DoS via a negative first argument (CVE-2005-3053).

Versions 2.6.8 to 2.6.14-rc2 allow local users to cause a DoS (oops) via a userspace process that issues a USB Request Block (URB) to a USB device and terminates before the URB is finished, which leads to a stale pointer reference (CVE-2005-3055).

The Orinoco driver in 2.6.13 and earlier does not properly clear memory from a previously used packet whose length is increased, allowing remote attackers to obtain sensitive information (CVE-2005-3180).

Kernels 2.6.13 and earlier, when CONFIG_AUDITSYSCALL is enabled, use an incorrect function to free names_cache memory, preventing the memory from being tracked by AUDITSYSCALL code and leading to a memory leak (CVE-2005-3181).

The VT implementation in version 2.6.12 allows local users to use certain IOCTLs on terminals of other users and gain privileges (CVE-2005-3257).

Exec does not properly clear posix-timers in multi-threaded environments, which result in a resource leak and could allow a large number of multiple local users to cause a DoS by using more posix- timers than specified by the quota for a single user (CVE-2005-3271).

The rose_rt_ioctl function rose_route.c in versions prior to 2.6.12 does not properly verify the ndigis argument for a new route, allowing an attacker to trigger array out-of-bounds errors with a large number of digipeats (CVE-2005-3273).

A race condition in ip_vs_conn_flush in versions prior to 2.6.13, when running on SMP systems, allows local users to cause a DoS (null dereference) by causing a connection timer to expire while the connection table is being flushed before the appropriate lock is acquired (CVE-2005-3274).

The NAT code in versions prior to 2.6.13 incorrectly declares a variable to be static, allowing remote attackers to cause a DoS (memory corruption) by causing two packets for the same protocol to be NATed at the same time (CVE-2005-3275).

The sys_get_thread_area function in process.c in versions prior to 2.6.12.4 and 2.6.13 does not clear a data structure before copying it to userspace, which may allow a user process to obtain sensitive information (CVE-2005-3276).

The following non-security fixes are also applied :

Driver updates were made to the aic97xx and sata_sil modules.

Support was added for ATI ipx400 chipsets, for IDE and sound.

A build problem with icecream on the x86_64 platform was fixed.

The pin1 APIC timer on RS480-based motherboards was disabled.

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

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

http://www.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-2004-1017     Multiple overflows exist in the io_edgeport driver which     might be usable as a denial of service attack vector.

  - CVE-2005-0124     Bryan Fulton reported a bounds checking bug in the     coda_pioctl function which may allow local users to     execute arbitrary code or trigger a denial of service     attack.

  - CVE-2005-0449     An error in the skb_checksum_help() function from the     netfilter framework has been discovered that allows the     bypass of packet filter rules or a denial of service     attack.

  - CVE-2005-2457     Tim Yamin discovered that insufficient input validation     in the zisofs driver for compressed ISO file systems     allows a denial of service attack through maliciously     crafted ISO images.

  - CVE-2005-2490     A buffer overflow in the sendmsg() function allows local     users to execute arbitrary code.

  - CVE-2005-2555     Herbert Xu discovered that the setsockopt() function was     not restricted to users/processes with the CAP_NET_ADMIN     capability. This allows attackers to manipulate IPSEC     policies or initiate a denial of service attack. 

  - CVE-2005-2709     Al Viro discovered a race condition in the /proc     handling of network devices. A (local) attacker could     exploit the stale reference after interface shutdown to     cause a denial of service or possibly execute code in     kernel mode.

  - CVE-2005-2800     Jan Blunck discovered that repeated failed reads of     /proc/scsi/sg/devices leak memory, which allows a denial     of service attack.

  - CVE-2005-2973     Tetsuo Handa discovered that the udp_v6_get_port()     function from the IPv6 code can be forced into an     endless loop, which allows a denial of service attack.

  - CVE-2005-3044     Vasiliy Averin discovered that the reference counters     from sockfd_put() and fput() can be forced into     overlapping, which allows a denial of service attack     through a NULL pointer dereference.

  - CVE-2005-3053     Eric Dumazet discovered that the set_mempolicy() system     call accepts a negative value for its first argument,     which triggers a BUG() assert. This allows a denial of     service attack.

  - CVE-2005-3055     Harald Welte discovered that if a process issues a USB     Request Block (URB) to a device and terminates before     the URB completes, a stale pointer would be     dereferenced. This could be used to trigger a denial of     service attack.

  - CVE-2005-3180     Pavel Roskin discovered that the driver for Orinoco     wireless cards clears its buffers insufficiently. This     could leak sensitive information into user space.

  - CVE-2005-3181     Robert Derr discovered that the audit subsystem uses an     incorrect function to free memory, which allows a denial     of service attack.

  - CVE-2005-3257     Rudolf Polzer discovered that the kernel improperly     restricts access to the KDSKBSENT ioctl, which can     possibly lead to privilege escalation.

  - CVE-2005-3356     Doug Chapman discovered that the mq_open syscall can be     tricked into decrementing an internal counter twice,     which allows a denial of service attack through a kernel     panic.

  - CVE-2005-3358     Doug Chapman discovered that passing a zero bitmask to     the set_mempolicy() system call leads to a kernel panic,     which allows a denial of service attack.

  - CVE-2005-3783     The ptrace code using CLONE_THREAD didn't use the thread     group ID to determine whether the caller is attaching to     itself, which allows a denial of service attack.

  - CVE-2005-3784     The auto-reaping of child processes functionality     included ptraced-attached processes, which allows denial     of service through dangling references.

  - CVE-2005-3806     Yen Zheng discovered that the IPv6 flow label code     modified an incorrect variable, which could lead to     memory corruption and denial of service.

  - CVE-2005-3847     It was discovered that a threaded real-time process,     which is currently dumping core can be forced into a     dead-lock situation by sending it a SIGKILL signal,     which allows a denial of service attack. 

  - CVE-2005-3848     Ollie Wild discovered a memory leak in the     icmp_push_reply() function, which allows denial of     service through memory consumption.

  - CVE-2005-3857     Chris Wright discovered that excessive allocation of     broken file lock leases in the VFS layer can exhaust     memory and fill up the system logging, which allows     denial of service.

  - CVE-2005-3858     Patrick McHardy discovered a memory leak in the     ip6_input_finish() function from the IPv6 code, which     allows denial of service.

  - CVE-2005-4605     Karl Janmar discovered that a signedness error in the     procfs code can be exploited to read kernel memory,     which may disclose sensitive information.

  - CVE-2005-4618     Yi Ying discovered that sysctl does not properly enforce     the size of a buffer, which allows a denial of service     attack.

  - CVE-2006-0095     Stefan Rompf discovered that dm_crypt does not clear an     internal struct before freeing it, which might disclose     sensitive information.

  - CVE-2006-0096     It was discovered that the SDLA driver's capability     checks were too lax for firmware upgrades.

  - CVE-2006-0482     Ludovic Courtes discovered that get_compat_timespec()     performs insufficient input sanitizing, which allows a     local denial of service attack.

  - CVE-2006-1066     It was discovered that ptrace() on the ia64 architecture     allows a local denial of service attack, when preemption     is enabled.

Al Viro 氏は、ネットワークデバイスの /proc ファイルハンドラーで競合状態を発見しました。/proc/sys/net/ipv4/conf/<interface>/ の中の任意のファイルを開いて、そのインターフェイスがシャットダウンされるまで待機することで、ローカルの攻撃者がこれを悪用する可能性があります。特定の状況下では、このためにカーネルクラッシュが発生したり、完全なカーネル権限で任意のコードが実行される可能性もあります。(CVE-2005-2709)

Tetsuo Handa 氏は、udp_v6_get_port() 関数でローカルのサービス拒否の脆弱性を発見しました。IPv6 を使用するコンピュータで、ローカルの攻撃者がこれを悪用して、カーネルで無限ループを発生させる可能性があります。
(CVE-2005-2973)

Harald Welte 氏は、USB devio ドライバーでサービス拒否の脆弱性を発見しました。ローカルの攻撃者がこれを悪用して、「USB リクエストブロック」（URB）を送信し、応答が到着する前に送信プロセスを終了することで、無効なポインターを残してカーネルクラッシュを引き起こす可能性がありました。(CVE-2005-3055)

Pavel Roskin 氏は、Orinoco 無線カードドライバーで情報漏洩を発見しました。データを格納するためのバッファの長さが増加するとき、バッファがゼロでパディングされないため、ユーザーにシステムメモリのランダムな部分が露出されました。(CVE-2005-3180)

exec() 関数の POSIX タイマーの処理で、リソース漏洩が発見されました。これは、ローカルユーザーのグループにより DoS 攻撃（サービス拒否攻撃）に悪用可能です。この脆弱性の影響を受けるのは、Ubuntu 4.10 のみです。(CVE-2005-3271)

Stephen Hemming 氏は、ネットワークブリッジドライバーの弱点を発見しました。
パケットフィルターですでに落とされているパケットが、転送テーブルを汚染するため、ブリッジ転送にパッケージを偽装させるために悪用可能です。この脆弱性の影響を受けるのは、Ubuntu 4.10 および 5.04 のみです。(CVE-2005-3272)

David S. Miller 氏は、rose_rt_ioctl() 関数でバッファオーバーフローを発見しました。大きな「ngidis」引数を付けてこの関数を呼び出すことで、ローカルの攻撃者がカーネルクラッシュを引き起こす可能性があります。この脆弱性の影響を受けるのは、Ubuntu 4.10 および 5.04 のみです。(CVE-2005-3273)

Neil Horman 氏は、接続タイマーの処理で競合状態を発見しました。このため、ローカルの攻撃者が、接続リストがまだトラバースされている間に、その接続リストを変更する期限切れハンドラーを設定して、カーネルクラッシュを引き起こす可能性があります。この脆弱性は、マルチプロセッサ（SMP）システムだけに影響を及ぼします。(CVE-2005-3274)

Patrick McHardy 氏は、ネットワークアドレス変換（NAT）接続トラッカーの論理エラーを発見しました。リモートの攻撃者がこれを悪用して、同じプロトコルの 2 つのパケットを同時に NAT 処理させることで、カーネルクラッシュを引き起こす可能性があります。(CVE-2005-3275)

Paolo Giarrusso 氏は、sys_get_thread_area() の情報漏洩を発見しました。戻される構造体が適切にクリアされず、少量のカーネルメモリがユーザー空間のプログラムに漏洩しました。これにより、機密データが漏洩する可能性があります。
（CVE-2005-3276）。

Al Viro 在网络设备的 /proc 文件处理程序中发现一个争用条件。本地攻击者可通过打开 /proc/sys/net/ipv4/conf/<interface>/ 中的任意文件并等待该界面关闭来利用此问题。在某些情况下，这样可导致内核崩溃，甚至以完整的内核权限执行任意代码。(CVE-2005-2709)

Tetsuo Handa 在 udp_v6_get_port() 函数中发现一个本地拒绝服务漏洞。在使用 IPv6 的计算机上，本地攻击者可利用此漏洞来触发内核中的无限循环。
(CVE-2005-2973)

Harald Welte 在 USB devio 驱动程序中发现一个拒绝服务漏洞。本地攻击者可通过发送“USB 请求块”(URB) 并在回复到达之前终止发送进程来利用此漏洞，从而留下无效指针并导致内核崩溃。(CVE-2005-3055)

Pavel Roskin 在 Orinoco 无线网卡驱动程序中发现一个信息泄漏。增加用户存储数据的缓冲区长度时，该缓冲区不会用 0 来填充，从而将系统内存的随机部分暴露给用户。(CVE-2005-3180)

在 exec() 函数中的 POSIX 定时器处理中发现一个资源泄漏。此问题可被一组本地用户用于进行拒绝服务攻击。此漏洞仅影响 Ubuntu 4.10。(CVE-2005-3271)

Stephen Hemming 在网桥驱动程序中发现一个漏洞。
已被数据包过滤器丢弃的数据包可使转发表中毒，这样可被利用于使桥接转发欺骗性程序包。此漏洞仅影响 Ubuntu 4.10 和 5.04。(CVE-2005-3272)

David S. Miller 在 rose_rt_ioctl() 函数中发现一个缓冲区溢出。通过以大型“ngidis”参数调用该函数，本地攻击者可造成内核崩溃。此漏洞仅影响 Ubuntu 4.10 和 5.04。(CVE-2005-3273)

Neil Horman 在连接定时器处理中发现一个争用条件。这样允许本地攻击者设置到期处理程序，该处理程序会在仍在遍历连接列表时修改该列表，这样可导致内核崩溃。此漏洞仅影响多处理器 (SMP) 系统。(CVE-2005-3274)

Patrick McHardy 注意到网络地址转换 (NAT) 连接跟踪器中的一个逻辑错误。远程攻击者可通过导致同时对同一协议的两个数据包进行 NAT 来利用此问题，从而导致内核崩溃。(CVE-2005-3275)

Paolo Giarrusso 在 sys_get_thread_area() 中发现一个信息泄漏。返回的结构未得到正确清理，这样会将少量内核内存暴露给用户空间程序。这样可能会暴露机密数据。
(CVE-2005-3276)。

Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 3. This is the eighth regular update.

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.

This is the eighth regular kernel update to Red Hat Enterprise Linux 3.

New features introduced by this update include :

  - addition of the adp94xx and dcdbas device drivers -     diskdump support on megaraid_sas, qlogic, and swap     partitions - support for new hardware via driver and     SCSI white-list updates

There were many bug fixes in various parts of the kernel. The ongoing effort to resolve these problems has resulted in a marked improvement in the reliability and scalability of Red Hat Enterprise Linux 3.

There were numerous driver updates and security fixes (elaborated below). Other key areas affected by fixes in this update include the networking subsystem, the NFS and autofs4 file systems, the SCSI and USB subsystems, and architecture-specific handling affecting AMD Opteron and Intel EM64T processors.

The following device drivers have been added or upgraded to new versions :

adp94xx -------- 1.0.8 (new) bnx2 ----------- 1.4.38 cciss ---------- 2.4.60.RH1 dcdbas --------- 5.6.0-1 (new) e1000 ---------- 7.0.33-k2 emulex --------- 7.3.6 forcedeth ------ 0.30 ipmi ----------- 35.13 qlogic --------- 7.07.04b6 tg3 ------------ 3.52RH

The following security bugs were fixed in this update :

  - a flaw in the USB devio handling of device removal that     allowed a local user to cause a denial of service     (crash) (CVE-2005-3055, moderate)

  - a flaw in the exec() handling of multi-threaded tasks     using ptrace() that allowed a local user to cause a     denial of service (hang of a user process)     (CVE-2005-3107, low)

  - a difference in 'sysretq' operation of EM64T (as opposed     to Opteron) processors that allowed a local user to     cause a denial of service (crash) upon return from     certain system calls (CVE-2006-0741 and CVE-2006-0744,     important)

  - a flaw in unaligned accesses handling on Intel Itanium     processors that allowed a local user to cause a denial     of service (crash) (CVE-2006-0742, important)

  - an info leak on AMD-based x86 and x86_64 systems that     allowed a local user to retrieve the floating point     exception state of a process run by a different user     (CVE-2006-1056, important)

  - a flaw in IPv4 packet output handling that allowed a     remote user to bypass the zero IP ID countermeasure on     systems with a disabled firewall (CVE-2006-1242, low)

  - a minor info leak in socket option handling in the     network code (CVE-2006-1343, low)

  - a flaw in IPv4 netfilter handling for the unlikely use     of SNMP NAT processing that allowed a remote user to     cause a denial of service (crash) or potential memory     corruption (CVE-2006-2444, moderate)

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

All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

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

This 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 USB devio handling of device removal that allowed a local user to cause a denial of service (crash) (CVE-2005-3055, moderate)

* a flaw in ROSE due to missing verification of the ndigis argument of new routes (CVE-2005-3273, moderate)

* an info leak on AMD-based x86 systems that allowed a local user to retrieve the floating point exception state of a process run by a different user (CVE-2006-1056, important)

* a minor info leak in socket name handling in the network code (CVE-2006-1342, low)

* a minor info leak in socket option handling in the network code (CVE-2006-1343, low)

* a directory traversal vulnerability in smbfs that allowed a local user to escape chroot restrictions for an SMB-mounted filesystem via '..\\' sequences (CVE-2006-1864, moderate)

* a flaw in the mprotect system call that allowed to give write permission to a readonly attachment of shared memory (CVE-2006-2071, moderate)

A performance bug in the NFS implementation that caused clients to frequently pause when sending TCP segments during heavy write loads was also addressed.

All Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels to these updated packages, which contain backported fixes to correct these issues.

Al Viro 在網路裝置的 /proc 檔案處置程式中發現爭用情形。本機攻擊者可在 /proc/sys/net/ipv4/conf/<interface>/ 中開啟任何檔案並等候到該介面關閉為止來加以惡意利用。在某些情況下，這可導致核心損毀甚或以完整核心權限執行任意程式碼。(CVE-2005-2709)

Tetsuo Handa 在 udp_v6_get_port() 函式中發現一個本機拒絕服務弱點。在使用 IPv6 的電腦上，本機攻擊者可加以惡意利用，在核心中觸發無限迴圈。
(CVE-2005-2973)

Harald Welte 在 USB devio 驅動程式中發現一個拒絕服務弱點。本機攻擊者可加以惡意利用，傳送 'USB Request Block' (URB) 並在答案到達之前終止傳送處理程序，進而留下無效的指標並造成核心損毀。(CVE-2005-3055)

Pavel Roskin 在 Orinoco 無線卡驅動程式中發現資訊洩漏。當增加儲存資料的緩衝區長度時，緩衝區並未填補零，而致使系統記憶體的隨機部分洩漏給使用者。(CVE-2005-3180)

在 exec() 函式的 POSIX 計時器處理中發現資源洩漏。本機使用者群組可加以惡意利用，發動拒絕服務攻擊。此弱點只會影響 Ubuntu 4.10。(CVE-2005-3271)

Stephen Hemming 在網路橋接器驅動程式中發現一個弱點。
已由封包篩選器捨棄的封包可毒害轉送表格，其可被惡意利用來使橋接器轉送偽造的套件。受此弱點影響的只有 Ubuntu 4.10 和 5.04。(CVE-2005-3272)

David S. Miller 在 rose_rt_ioctl() 函式中發現一個緩衝區溢位。透過以大型 'ngidis' 引數呼叫此函式，本機攻擊者可造成核心損毀。受此弱點影響的只有 Ubuntu 4.10 和 5.04。(CVE-2005-3273)

Neil Horman 在連線計時器處理中發現爭用情形。這允許本機攻擊者設定到期處置程式，其會在清單仍在遊走時修改連線清單，進而導致核心損毀。此弱點只會影響多處理器 (SMP) 系統。(CVE-2005-3274)

Patrick McHardy 在網路位址轉譯 (NAT) 連線追蹤器中發現一個邏輯錯誤。遠端攻擊者可加以惡意利用，造成相同通訊協定的兩個封包同時進行 NAT，進而導致核心損毀。(CVE-2005-3275)

Paolo Giarrusso 在 sys_get_thread_area() 中發現資訊洩漏。未正確清除傳回的結構，導致少量的核心記憶體洩漏給使用者空間程式。這可能洩漏機密資料。
(CVE-2005-3276)。

Multiple vulnerabilities in the Linux 2.6 kernel have been discovered and corrected in this update :

A stack-based buffer overflow in the sendmsg function call in versions prior to 2.6.13.1 allow local users to execute arbitrary code by calling sendmsg and modifying the message contents in another thread (CVE-2005-2490).

The raw_sendmsg function in versions prior to 2.6.13.1 allow local users to cause a DoS (change hardware state) or read from arbitrary memory via crafted input (CVE-2005-2492).

The ipt_recent module in versions prior to 2.6.12 does not properly perform certain tests when the jiffies value is greater than LONG_MAX, which can cause ipt_recent netfilter rules to block too early (CVE-2005-2873).

Multiple vulnerabilities in versions prior to 2.6.13.2 allow local users to cause a DoS (oops from null dereference) via fput in a 32bit ioctl on 64-bit x86 systems or sockfd_put in the 32-bit routing_ioctl function on 64-bit systems (CVE-2005-3044).

Versions 2.6.8 to 2.6.14-rc2 allow local users to cause a DoS (oops) via a userspace process that issues a USB Request Block (URB) to a USB device and terminates before the URB is finished, which leads to a stale pointer reference (CVE-2005-3055).

drm.c in version 2.6.13 and earlier creates a debug file in sysfs with world-readable and world-writable permissions, allowing local users to enable DRM debugging and obtain sensitive information (CVE-2005-3179).

The Orinoco driver in 2.6.13 and earlier does not properly clear memory from a previously used packet whose length is increased, allowing remote attackers to obtain sensitive information (CVE-2005-3180).

Kernels 2.6.13 and earlier, when CONFIG_AUDITSYSCALL is enabled, use an incorrect function to free names_cache memory, preventing the memory from being tracked by AUDITSYSCALL code and leading to a memory leak (CVE-2005-3181).

The VT implementation in version 2.6.12 allows local users to use certain IOCTLs on terminals of other users and gain privileges (CVE-2005-3257).

A race condition in ip_vs_conn_flush in versions prior to 2.6.13, when running on SMP systems, allows local users to cause a DoS (null dereference) by causing a connection timer to expire while the connection table is being flushed before the appropriate lock is acquired (CVE-2005-3274).

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

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

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

Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 4.

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.

This is the fourth regular update to Red Hat Enterprise Linux 4.

New features introduced in this update include :

* Device Mapper mirroring support

* IDE diskdump support

* x86, AMD64 and Intel EM64T: Multi-core scheduler support enhancements

* Itanium: perfmon support for Montecito

* much improved support for IBM x460

* AMD PowerNow! patches to support Opteron Rev G

* Vmalloc support > 64MB

The following device drivers have been upgraded to new versions :

ipmi: 33.11 to 33.13 ib_mthca: 0.06 to 0.08 bnx2: 1.4.30 to 1.4.38 bonding: 2.6.1 to 2.6.3 e100: 3.4.8-k2-NAPI to 3.5.10-k2-NAPI e1000:
6.1.16-k3-NAPI to 7.0.33-k2-NAPI sky2: 0.13 to 1.1 tg3: 3.43-rh to 3.52-rh ipw2100: 1.1.0 to git-1.1.4 ipw2200: 1.0.0 to git-1.0.10 3w-9xxx: 2.26.02.001 to 2.26.04.010 ips: 7.10.18 to 7.12.02 iscsi_sfnet: 4:0.1.11-2 to 4:0.1.11-3 lpfc: 0:8.0.16.18 to 0:8.0.16.27 megaraid_sas: 00.00.02.00 to 00.00.02.03-RH1 qla2xxx: 8.01.02-d4 to 8.01.04-d7 qla6312: 8.01.02-d4 to 8.01.04-d7 sata_promise: 1.03 to 1.04 sata_vsc: 1.1 to 1.2 ibmvscsic: 1.5.5 to 1.5.6 ipr: 2.0.11.1 to 2.0.11.2

Added drivers :

dcdbas: 5.6.0-2 sata_mv: 0.6 sata_qstor: 0.05 sata_uli: 0.5 skge: 1.1 stex: 2.9.0.13 pdc_adma: 0.03

This update includes fixes for the security issues :

* a flaw in the USB devio handling of device removal that allowed a local user to cause a denial of service (crash) (CVE-2005-3055, moderate)

* a flaw in the ACL handling of nfsd that allowed a remote user to bypass ACLs for readonly mounted NFS file systems (CVE-2005-3623, moderate)

* a flaw in the netfilter handling that allowed a local user with CAP_NET_ADMIN rights to cause a buffer overflow (CVE-2006-0038, low)

* a flaw in the IBM S/390 and IBM zSeries strnlen_user() function that allowed a local user to cause a denial of service (crash) or to retrieve random kernel data (CVE-2006-0456, important)

* a flaw in the keyctl functions that allowed a local user to cause a denial of service (crash) or to read sensitive kernel memory (CVE-2006-0457, important)

* a flaw in unaligned accesses handling on Itanium processors that allowed a local user to cause a denial of service (crash) (CVE-2006-0742, important)

* a flaw in SELinux ptrace logic that allowed a local user with ptrace permissions to change the tracer SID to a SID of another process (CVE-2006-1052, moderate)

* an info leak on AMD-based x86 and x86_64 systems that allowed a local user to retrieve the floating point exception state of a process run by a different user (CVE-2006-1056, important)

* a flaw in IPv4 packet output handling that allowed a remote user to bypass the zero IP ID countermeasure on systems with a disabled firewall (CVE-2006-1242, low)

* a minor info leak in socket option handling in the network code (CVE-2006-1343, low)

* a flaw in the HB-ACK chunk handling of SCTP that allowed a remote user to cause a denial of service (crash) (CVE-2006-1857, moderate)

* a flaw in the SCTP implementation that allowed a remote user to cause a denial of service (deadlock) (CVE-2006-2275, moderate)

* a flaw in the socket buffer handling that allowed a remote user to cause a denial of service (panic) (CVE-2006-2446, important)

* a flaw in the signal handling access checking on PowerPC that allowed a local user to cause a denial of service (crash) or read arbitrary kernel memory on 64-bit systems (CVE-2006-2448, important)

* a flaw in the netfilter SCTP module when receiving a chunkless packet that allowed a remote user to cause a denial of service (crash) (CVE-2006-2934, important)

There were several bug fixes in various parts of the kernel. The ongoing effort to resolve these problems has resulted in a marked improvement in the reliability and scalability of Red Hat Enterprise Linux 4.

Al Viro discovered a race condition in the /proc file handler of network devices. A local attacker could exploit this by opening any file in /proc/sys/net/ipv4/conf/<interface>/ and waiting until that interface was shut down. Under certain circumstances this could lead to a kernel crash or even arbitrary code execution with full kernel privileges. (CVE-2005-2709)

Tetsuo Handa discovered a local Denial of Service vulnerability in the udp_v6_get_port() function. On computers which use IPv6, a local attacker could exploit this to trigger an infinite loop in the kernel.
(CVE-2005-2973)

Harald Welte discovered a Denial of Service vulnerability in the USB devio driver. A local attacker could exploit this by sending an 'USB Request Block' (URB) and terminating the sending process before the arrival of the answer, which left an invalid pointer and caused a kernel crash. (CVE-2005-3055)

Pavel Roskin discovered an information leak in the Orinoco wireless card driver. When increasing the buffer length for storing data, the buffer was not padded with zeros, which exposed a random part of the system memory to the user. (CVE-2005-3180)

A resource leak has been discovered in the handling of POSIX timers in the exec() function. This could be exploited to a Denial of Service attack by a group of local users. This vulnerability only affects Ubuntu 4.10. (CVE-2005-3271)

Stephen Hemming discovered a weakness in the network bridge driver.
Packets which had already been dropped by the packet filter could poison the forwarding table, which could be exploited to make the bridge forward spoofed packages. This vulnerability only affects Ubuntu 4.10 and 5.04. (CVE-2005-3272)

David S. Miller discovered a buffer overflow in the rose_rt_ioctl() function. By calling the function with a large 'ngidis' argument, a local attacker could cause a kernel crash. This vulnerability only affects Ubuntu 4.10 and 5.04. (CVE-2005-3273)

Neil Horman discovered a race condition in the connection timer handling. This allowed a local attacker to set up an expiration handler which modified the connection list while the list still being traversed, which could result in a kernel crash. This vulnerability only affects multiprocessor (SMP) systems. (CVE-2005-3274)

Patrick McHardy noticed a logic error in the network address translation (NAT) connection tracker. A remote attacker could exploit this by causing two packets for the same protocol to be NATed at the same time, which resulted in a kernel crash. (CVE-2005-3275)

Paolo Giarrusso discovered an information leak in the sys_get_thread_area(). The returned structure was not properly cleared, which exposed a small amount of kernel memory to userspace programs. This could possibly expose confidential data.
(CVE-2005-3276).

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
20450	Mandrake Linux Security Advisory : kernel (MDKSA-2005:219)	Nessus	Mandriva Local Security Checks	2006/1/15	2021/1/6	high
22559	Debian DSA-1017-1 : kernel-source-2.6.8 - several vulnerabilities	Nessus	Debian Local Security Checks	2006/10/14	2021/1/4	critical
65105	Ubuntu 4.10 / 5.10：linux-source-2.6.8.1/-2.6.10/-2.6.12 の脆弱性（USN-219-1）	Nessus	Ubuntu Local Security Checks	2013/3/9	2021/1/19	medium
65105	Ubuntu 4.10 / 5.10：linux-source-2.6.8.1/-2.6.10/-2.6.12 漏洞 (USN-219-1)	Nessus	Ubuntu Local Security Checks	2013/3/9	2021/1/19	medium
22086	RHEL 3 : kernel (RHSA-2006:0437)	Nessus	Red Hat Local Security Checks	2006/7/21	2021/1/14	high
22054	RHEL 2.1 : kernel (RHSA-2006:0579)	Nessus	Red Hat Local Security Checks	2006/7/17	2021/1/14	medium
65105	Ubuntu 4.10 / 5.10：linux-source-2.6.8.1/-2.6.10/-2.6.12 弱點 (USN-219-1)	Nessus	Ubuntu Local Security Checks	2013/3/9	2021/1/19	medium
20466	Mandrake Linux Security Advisory : kernel (MDKSA-2005:235)	Nessus	Mandriva Local Security Checks	2006/1/15	2021/1/6	medium
22135	CentOS 3 : kernel (CESA-2006:0437)	Nessus	CentOS Local Security Checks	2006/8/4	2021/1/4	high
22221	RHEL 4 : kernel (RHSA-2006:0575)	Nessus	Red Hat Local Security Checks	2006/8/14	2021/1/14	high
22276	CentOS 4 : kernel (CESA-2006:0575)	Nessus	CentOS Local Security Checks	2006/8/30	2021/1/4	high
65105	Ubuntu 4.10 / 5.10 : linux-source-2.6.8.1/-2.6.10/-2.6.12 vulnerabilities (USN-219-1)	Nessus	Ubuntu Local Security Checks	2013/3/9	2021/1/19	medium

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