SUSE Linux Enterprise 11 Service Pack 1 核心已更新至 2.6.32.45 並修正多個錯誤和安全性問題。

下列安全性問題已修正：

- Timo Warns 報告 GUID 磁碟分割的 Linux 實作中的問題。具有實際存取權的使用者可新增包含損毀且無效之特製磁碟分割表格的儲存裝置，藉此取得敏感核心記憶體的存取權。(CVE-2011-1776)

- 此修正的第二個部分尚未套用至我們的核心：2.6.36.2 之前版本的 Linux 核心的 arch/x86/kvm/x86.c 未初始化特定結構成員，它會允許本機使用者透過 /dev/kvm 裝置上的讀取作業，從核心堆疊記憶體取得潛在敏感資訊。(CVE-2010-3881)

- /proc/PID/io 介面可受本機攻擊者所利用，用以取得其他處理程序 (例如，輸入的或類似的密碼字元數目) 上的資訊。
 (CVE-2011-2495)

- 已修正無線電驅動程式 si4713-i2c 中的小型緩衝區溢位。它可能受本機攻擊者所利用，用以使核心損毀，或執行可能的程式碼。
 (CVE-2011-2700)

- 已修正在 comedi 驅動程式中，從核心到使用者空間的核心資訊洩漏。(CVE-2011-2909)

- 在 perf 架構中，軟體事件溢位可鎖死或刪除未初始化的計時器。
 (CVE-2011-2918)

openSUSE 11.4 内核已更新，修复了多种缺陷和安全问题。

这是 openSUSE 11.4 的 2.6.37 内核的最后更新。

已发现在执行程序时，/proc 文件系统未正确处理权限更改。本地攻击者可能保存打开的文件以检查关于使用更高权限运行的程序的详细信息，可能增加其他漏洞被利用的几率。(CVE-2011-1020)

Vasiliy Kulikov 发现 Bluetooth 堆栈未正确清除内存。本地攻击者可利用此缺陷读取内核堆栈内存，从而导致失去隐私。(CVE-2011-1078)

Vasiliy Kulikov 发现 Bluetooth 堆栈未正确检查以 NULL 结尾的设备名字符串。本地攻击者可利用此缺陷造成系统崩溃，导致拒绝服务，或泄漏内核堆栈内存的内容，从而导致失去隐私。(CVE-2011-1079)

Vasiliy Kulikov 发现桥接网络过滤未检查名称字段是否以 NULL 终止。本地攻击者可利用此缺陷来泄漏内核堆栈内存的内容，从而导致失去隐私。(CVE-2011-1080)

Johan Hovold 发现 DCCP 网络堆栈未正确处理某些数据包组合。远程攻击者可发送特别构建的网络流量来造成系统崩溃，从而导致拒绝服务。(CVE-2011-1093)

Peter Huewe 发现 TPM 设备未正确初始化内存。本地攻击者可利用此缺陷来读取内核堆内存，从而导致失去隐私。(CVE-2011-1160)

Dan Rosenberg 发现 IRDA 子系统未正确检查某些字段大小。如果系统使用了 IRDA，远程攻击者可发送特别构建的流量来造成系统崩溃，也可能获取根权限。(CVE-2011-1180)

Ryan Sweat 发现 GRO 代码未正确验证内存。在使用 VLAN 的系统上的某些配置中，远程攻击者可发送特别构建的流量来造成系统崩溃，从而导致拒绝服务。(CVE-2011-1478)

已发现 CVE-2010-4250 的安全补丁引入了回归。远程攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-1479)

Dan Rosenberg 发现 X.25 Rose 网络堆栈未正确处理特定字段。如果运行的系统启用了 Rose，远程攻击者可能发送特别构建的流量来获取根权限。(CVE-2011-1493)

已发现流控制传输协议 (SCTP) 实现未正确计算长度。如果将 net.sctp.addip_enable 变量设置为 on，远程攻击者可发送特别构建的流量来造成系统崩溃。(CVE-2011-1573)

Ryan Sweat 发现内核未正确处理某些 VLAN 数据包。在某些系统上，远程攻击者可能发送特别构建的流量来造成系统崩溃，从而导致拒绝服务。
(CVE-2011-1576)

Timo Warns 发现 GUID 分区解析例程未正确验证某些结构。具有物理访问权限的本地攻击者可以插入特别构建的区块设备来造成系统崩溃，从而导致拒绝服务。(CVE-2011-1577)

Phil Oester 发现网络绑定系统未正确处理大型队列。在某些系统上，远程攻击者可能发送特别构建的流量来造成系统崩溃，从而导致拒绝服务。(CVE-2011-1581)

发现 CIFS 未正确处理认证。当用户挂载有需要认证的 CIFS 共享时，本地用户可在不知道正确密码的情况下挂载相同的共享。
(CVE-2011-1585)

已发现 GRE 协议未正确处理 netns 初始化。远程攻击者可在加载 ip_gre 模块时发送数据包，造成系统崩溃，从而导致拒绝服务。(CVE-2011-1767)

已发现 IP/IP 协议未正确处理 netns 初始化。远程攻击者可在加载 ipip 模块时发送数据包，造成系统崩溃，从而导致拒绝服务。(CVE-2011-1768)

Ben Greear 发现 CIFS 未正确处理直接 I/O。能够访问 CIFS 分区的本地攻击者可以利用此问题使系统崩溃，从而导致拒绝服务。(CVE-2011-1771)

Timo Warns 发现未正确解析 EFI GUID 分区表。实际本地攻击者可在插入可挂载设备后，利用此缺陷造成系统崩溃，或可能获取根权限。(CVE-2011-1776)

Vasiliy Kulikov 和 Dan Rosenberg 发现 ecryptfs 未正确检查挂载点的来源。本地攻击者可利用此缺陷来欺骗系统对任意挂载点进行取消挂载，从而导致拒绝服务。(CVE-2011-1833)

Ben Hutchings 报告内核在处理损坏 LDM 分区的过程中存在缺陷。本地用户可利用此缺陷造成拒绝服务或升级权限。(CVE-2011-2182)

Dan Rosenberg 发现 IPv4 诊断例程未正确验证某些请求。本地攻击者可利用此缺陷来消耗 CPU 资源，从而导致拒绝服务。
(CVE-2011-2213)

已发现“/dev/zero”上具有 MAP_PRIVATE 标记的 mmap() 调用未得到正确处理。本地攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。
(CVE-2011-2479)

Vasiliy Kulikov 发现 taskstats 监听器未得到妥善处理。本地攻击者可利用此缺陷来耗尽内存与 CPU 资源，从而导致拒绝服务。(CVE-2011-2484)

已发现 Bluetooth l2cap 和 rfcomm 未正确对结构进行初始化。本地攻击者可利用此问题读取内核堆栈的各部分，从而导致失去隐私。
(CVE-2011-2492)

Sami Liedes 发现 ext4 未正确处理缺失的根索引节点。本地攻击者可以触发挂载特别构建的文件系统以导致系统崩溃，从而导致拒绝服务。(CVE-2011-2493)

Robert Swiecki 发现映射扩展未得到正确处理。本地攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-2496)

Dan Rosenberg 发现 Bluetooth 堆栈未正确处理某些 L2CAP 请求。如果系统正在使用 Bluetooth，远程攻击者可能发送特别构建的流量来造成系统崩溃或获得根权限。(CVE-2011-2497)

Ben Pfaff 发现无类的队列规则 (qdiscs) 未得到妥善处理。本地攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-2525)

已发现 GFS2 未正确检查区块大小。本地攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-2689)

已发现 EXT4 文件系统包含多个差一缺陷。本地攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-2695)

Fernando Gont 发现，IPv6 堆栈使用的是可预测的拆分标识号。远程攻击者可利用此问题来耗尽网络资源，进而导致拒绝服务。
(CVE-2011-2699)

Mauro Carvalho Chehab 发现 si4713 无线收发器驱动程序未正确检查内存复制的长度。如果此硬件可用，本地攻击者可利用此缺陷造成系统崩溃，或获得根权限。(CVE-2011-2700)

Herbert Xu 发现在通用接收卸载时，某些字段未得到妥善处理 (CVE-2011-2723)

性能计数器子系统未正确处理某些计数器。本地攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-2918)

Time Warns 发现 Be 文件系统上未正确处理长符号链接。本地攻击者可通过畸形的 Be 文件系统利用此缺陷来造成系统崩溃，从而导致拒绝服务。
(CVE-2011-2928)

Qianfeng Zhang 发现桥接网络接口未正确处理特定网络数据包。远程攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。
(CVE-2011-2942)

Dan Kaminsky 发现内核未正确处理随机序列号生成。攻击者利用此缺陷可能预测序列号并注入数据包。(CVE-2011-3188)

Darren Lavender 发现 CIFS 客户端未正确处理某些大值。拥有恶意服务器的远程攻击者可利用此缺陷造成系统崩溃，或可能以根用户的身份执行任意代码。(CVE-2011-3191)

Yasuaki Ishimatsu 发现内核的时钟实现中存在一个缺陷。本地非特权攻击者可利用此缺陷造成拒绝服务。(CVE-2011-3209)

Yogesh Sharma 发现 CIFS 未正确处理没有前缀路径的 UNC。能够访问 CIFS 分区的本地攻击者可以利用此问题使系统崩溃，从而导致拒绝服务。(CVE-2011-3363)

在向 Linux 内核的 AppArmor 安全接口中写入无效信息时发现一个缺陷。本地非特权用户可利用此缺陷造成系统拒绝服务。
(CVE-2011-3619)

在 Linux 内核的 /proc/*/*map* 接口中发现一个缺陷。本地非特权用户可利用此缺陷造成拒绝服务。(CVE-2011-3637)

Scot Doyle 发现桥接网络接口未正确处理特定网络数据包。远程攻击者可利用此缺陷造成系统崩溃，从而导致拒绝服务。(CVE-2011-4087)

在 udp6_ufo_fragment() 函数执行余量检查的方式中发现一个缺陷。远程攻击者可利用此缺陷造成系统崩溃。(CVE-2011-4326)

Ben Hutchings 发现 Linux Rose (X.25 PLP) 层中存在多个缺陷。本地用户或 X.25 网络上的远程用户可利用这些缺陷以根权限执行任意代码。(CVE-2011-4914)。

SUSE Linux Enterprise 11 Service Pack 1 内核已更新到 2.6.32.45，并修复了各种缺陷和安全问题。

修复了以下安全问题：

- Timo Warns 报告了 GUID 分区的 Linux 实现中的一个问题。拥有物理访问权限的用户可通过特别构建的损坏的无效分区表添加存储设备，从而获取敏感内核内存的访问权限。(CVE-2011-1776)

- 此补丁的第二部分尚未应用于我们的内核：Linux 内核中 2.6.36.2 之前的 arch/x86/kvm/x86.c 未初始化某些结构成员，这允许本地用户通过针对 /dev/kvm 设备的读取操作从内核堆栈内存获取潜在的敏感信息。(CVE-2010-3881)

- 本地攻击者可使用 /proc/PID/io 接口获取有关键入的密码字符数或类似的其他进程的信息。
 (CVE-2011-2495)

- 修复了无线收发器驱动程序 si4713-i2c 中的小缓冲区溢出，本地攻击者可能利用此缺陷使内核崩溃或者可能执行代码。
 (CVE-2011-2700)

- 修复了 comedi 驱动程序中从内核到用户空间的内核信息泄漏。(CVE-2011-2909)

- 在 perf 框架中，软件事件溢出可锁死或删除未初始化的定时器。
 (CVE-2011-2918)

The SUSE Linux Enterprise 11 Service Pack 1 kernel was updated to 2.6.32.45 and fixes various bugs and security issues.

The following security issues have been fixed :

  - Timo Warns reported an issue in the Linux implementation     for GUID partitions. Users with physical access could     gain access to sensitive kernel memory by adding a     storage device with a specially crafted corrupted     invalid partition table. (CVE-2011-1776)

  - The second part of this fix was not yet applied to our     kernel: arch/x86/kvm/x86.c in the Linux kernel before     2.6.36.2 does not initialize certain structure members,     which allows local users to obtain potentially sensitive     information from kernel stack memory via read operations     on the /dev/kvm device. (CVE-2010-3881)

  - The /proc/PID/io interface could be used by local     attackers to gain information on other processes like     number of password characters typed or similar.
    (CVE-2011-2495)

  - A small buffer overflow in the radio driver si4713-i2c     was fixed that could potentially used by local attackers     to crash the kernel or potentially execute code.
    (CVE-2011-2700)

  - A kernel information leak in the comedi driver from     kernel to userspace was fixed. (CVE-2011-2909)

  - In the perf framework software event overflows could     deadlock or delete an uninitialized timer.
    (CVE-2011-2918)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478)

It was discovered that the security fix for CVE-2010-4250 introduced a regression. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1479)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

It was discovered that the Stream Control Transmission Protocol (SCTP) implementation incorrectly calculated lengths. If the net.sctp.addip_enable variable was turned on, a remote attacker could send specially crafted traffic to crash the system. (CVE-2011-1573)

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2011-1576)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

Phil Oester discovered that the network bonding system did not correctly handle large queues. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1581)

It was discovered that CIFS incorrectly handled authentication. When a user had a CIFS share mounted that required authentication, a local user could mount the same share without knowing the correct password.
(CVE-2011-1585)

It was discovered that the GRE protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ip_gre module was loading, and crash the system, leading to a denial of service. (CVE-2011-1767)

It was discovered that the IP/IP protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ipip module was loading, and crash the system, leading to a denial of service. (CVE-2011-1768)

Ben Greear discovered that CIFS did not correctly handle direct I/O. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-1771)

Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1776)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. (CVE-2011-1833)

Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM partitions. A local user could exploit this to cause a denial of service or escalate privileges. (CVE-2011-2182)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

It was discovered that an mmap() call with the MAP_PRIVATE flag on '/dev/zero' was incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2011-2479)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could exploit this to exhaust memory and CPU resources, leading to a denial of service. (CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Sami Liedes discovered that ext4 did not correctly handle missing root inodes. A local attacker could trigger the mount of a specially crafted filesystem to cause the system to crash, leading to a denial of service. (CVE-2011-2493)

Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2496)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

Ben Pfaff discovered that Classless Queuing Disciplines (qdiscs) were being incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2525)

It was discovered that GFS2 did not correctly check block sizes. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2689)

It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695)

Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service.
(CVE-2011-2699)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Qianfeng Zhang discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2011-2942)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)

Yasuaki Ishimatsu discovered a flaw in the kernel's clock implementation. A local unprivileged attacker could exploit this causing a denial of service. (CVE-2011-3209)

Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had no prefixpaths. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-3363)

A flaw was discovered in the Linux kernel's AppArmor security interface when invalid information was written to it. An unprivileged local user could use this to cause a denial of service on the system.
(CVE-2011-3619)

A flaw was found in the Linux kernel's /proc/*/*map* interface. A local, unprivileged user could exploit this flaw to cause a denial of service. (CVE-2011-3637)

Scot Doyle discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-4087)

A bug was found in the way headroom check was performed in udp6_ufo_fragment() function. A remote attacker could use this flaw to crash the system. (CVE-2011-4326)

Ben Hutchings discovered several flaws in the Linux Rose (X.25 PLP) layer. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root. (CVE-2011-4914).

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 openSUSE 11.4 kernel was updated to fix various bugs and security issues.

This is the final update of the 2.6.37 kernel of openSUSE 11.4.

ID	Name	Product	Family	Published	Updated	Severity
57109	SuSE 11.1 安全性更新：Linux 核心 (SAT 修補程式編號 5031 / 5055)	Nessus	SuSE Local Security Checks	12/13/2011	1/19/2021	medium
57110	SuSE 11.1 安全性更新：Linux 核心 (SAT 修補程式編號 5056)	Nessus	SuSE Local Security Checks	12/13/2011	1/19/2021	medium
74801	openSUSE 安全更新：kernel (openSUSE-SU-2012:1439-1)	Nessus	SuSE Local Security Checks	6/13/2014	1/19/2021	critical
56768	Ubuntu 10.04 LTS：linux-lts-backport-natty 漏洞 (USN-1256-1)	Nessus	Ubuntu Local Security Checks	11/10/2011	9/19/2019	critical
57109	SuSE 11.1 安全更新：Linux 内核（SAT 修补程序编号 5031/5055）	Nessus	SuSE Local Security Checks	12/13/2011	1/19/2021	medium
57110	SuSE 11.1 安全更新：Linux 内核（SAT 修补程序编号 5056）	Nessus	SuSE Local Security Checks	12/13/2011	1/19/2021	medium
57109	SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 5031 / 5055)	Nessus	SuSE Local Security Checks	12/13/2011	1/19/2021	medium
57110	SuSE 11.1 Security Update : Linux kernel (SAT Patch Number 5056)	Nessus	SuSE Local Security Checks	12/13/2011	1/19/2021	medium
56768	Ubuntu 10.04 LTS : linux-lts-backport-natty vulnerabilities (USN-1256-1)	Nessus	Ubuntu Local Security Checks	11/10/2011	9/19/2019	critical
74801	openSUSE Security Update : kernel (openSUSE-SU-2012:1439-1)	Nessus	SuSE Local Security Checks	6/13/2014	1/19/2021	critical

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