发布日期：2010-03-31
更新日期：2010-04-21

受影响系统：

FUJITA Tomonori Linux SCSI target framework 1.0.3
FUJITA Tomonori Linux SCSI target framework 0.9.5
iSCSI Enterprise Target iSCSI Enterprise Target 0.4.16
iSCSI Enterprise Target iSCSI Enterprise Target 0.4.15

不受影响系统：

iSCSI Enterprise Target iSCSI Enterprise Target 0.4.19

描述：

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BUGTRAQ  ID: 39127
CVE(CAN) ID: CVE-2010-0743

Linux SCSI Target Framework（tgt）用于简化各种SCSI目标驱动（iSCSI、Fibre Channel、SRP等）的创建和维护工作。

Linux SCSI Target Framework的usr/iscsi/isns.c文件中的isns_attr_query()和qry_rsp_handle()函数存在多个格式串错误，远程攻击者可以通过发送特制的client appearance或client disappearance消息导致tgtd守护程序崩溃。

<*来源：Florent Daigniere （nextgens@freenetproject.org）
  
  链接：http://secunia.com/advisories/39142
        https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=576359
        http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574935
        https://www.redhat.com/support/errata/RHSA-2010-0362.html
        http://www.debian.org/security/2010/dsa-2042
*>

建议：

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厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-2042-1）以及相应补丁:
DSA-2042-1：iscsitarget: Denial of service - Remote/unauthenticated
链接：http://www.debian.org/security/2010/dsa-2042

补丁下载：
Source archives:

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1.dsc
Size/MD5 checksum:     1193 df8ae44c0366731c4102f1c5290f6c15
http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162.orig.tar.gz
Size/MD5 checksum:   354607 7105541d6b64f75852a725bcc26636bf
http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1.diff.gz
Size/MD5 checksum:     6743 d529b9d00d84471b032a425596ee63fe

Architecture independent packages:

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget-source_0.4.16+svn162-3.1+lenny1_all.deb
Size/MD5 checksum:    42926 006bfefbd074b9dbf72843ef643ff8df

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_alpha.deb
Size/MD5 checksum:    67210 14b0bdb4c8ec37cbafdea7794e23abd8

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_amd64.deb
Size/MD5 checksum:    60612 109ce97790e712a34de0f35900013b4c

arm architecture (ARM)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_arm.deb
Size/MD5 checksum:    56720 18811f116a76d7313a2a3a28110cf826

armel architecture (ARM EABI)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_armel.deb
Size/MD5 checksum:    54884 3e461faf8c4894b16ca5ef30fe984f9d

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_hppa.deb
Size/MD5 checksum:    61690 e782044016a48646e518672dab64fa38

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_i386.deb
Size/MD5 checksum:    55872 4b76ecbc8b77f188fddeb22c85340730

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_ia64.deb
Size/MD5 checksum:    78788 64e434cc92a5c15464bbd686cf42b5e5

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_mips.deb
Size/MD5 checksum:    60938 4bd9648a4d57aebbf988bd109d50db31

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_mipsel.deb
Size/MD5 checksum:    60864 7f6bae57597af59dec08361837b52e6a

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_powerpc.deb
Size/MD5 checksum:    63610 1c2e92e14e5880718638fc4f73e35e3f

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_s390.deb
Size/MD5 checksum:    60210 5ad590f73d54b0524c95e9281e30a2ae

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/i/iscsitarget/iscsitarget_0.4.16+svn162-3.1+lenny1_sparc.deb
Size/MD5 checksum:    55122 1ddde4c48656b1db8121312202d40c76

补丁安装方法：

1. 手工安装补丁包：

  首先，使用下面的命令来下载补丁软件：
  # wget url  (url是补丁下载链接地址)

  然后，使用下面的命令来安装补丁：  
  # dpkg -i file.deb (file是相应的补丁名)

2. 使用apt-get自动安装补丁包：

   首先，使用下面的命令更新内部数据库：
   # apt-get update
  
   然后，使用下面的命令安装更新软件包：
   # apt-get upgrade

RedHat
------
RedHat已经为此发布了一个安全公告（RHSA-2010:0362-01）以及相应补丁:
RHSA-2010:0362-01：Important: scsi-target-utils security update
链接：https://www.redhat.com/support/errata/RHSA-2010-0362.html

FUJITA Tomonori
---------------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

http://git.kernel.org/?p=linux/kernel/git/tomo/tgt.git;a=commitdiff;h=107d922706cd36f3bb79bcca9bc4678c32f22e59

iSCSI Enterprise Target
-----------------------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

http://sourceforge.net/projects/iscsitarget/

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