发布日期：2008-02-27
更新日期：2008-06-27

受影响系统：

D-Bus D-Bus 1.x

不受影响系统：

D-Bus D-Bus 1.1.20
D-Bus D-Bus 1.0.3

描述：

---

BUGTRAQ  ID: 28023
CVE(CAN) ID: CVE-2008-0595

D-BUS是一个设计目标为应用程序间通信的消息总线系统。

在评估是否应执行某一调用时，总线守护程序会查找安全策略来判断是否允许调用程序访问该调用。很多dbus服务的安全策略中包含有类似于以下的行：

    <allow send_interface="some.interface.WithMethods"/>

用于以白名单列出特定策略环境下用户的特定调用接口。正常情况下是以完全合格的条件调用dbus方式方式的，也就是将方式所属的接口以及方式名称都传送给了总线守护程序，但总线守护程序不要求方式调用完全合格。如果调用程序只是传送了空接口的话，总线守护程序就会试图找到相应方式的接口，并在该接口上执行调用。在这种情况下，就会忽略allow指令的send_interface属性，

    <allow send_interface="some.interface.WithMethods"/>

会被解释为<allow/>。这意味着如果dbus策略文件中包含有特定环境的任何<allow send_interface="..." />指令的话，就会允许该环境调用不合格的方式。

<*来源：Havoc Pennington
  
  链接：http://secunia.com/advisories/29148
        http://lists.freedesktop.org/archives/dbus/2008-February/009401.html
        https://www.redhat.com/support/errata/RHSA-2008-0159.html
        http://www.debian.org/security/2008/dsa-1599
*>

建议：

---

厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-1599-1）以及相应补丁:
DSA-1599-1：New dbus packages fix privilege escalation
链接：http://www.debian.org/security/2008/dsa-1599

补丁下载：

Source archives:

http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2.orig.tar.gz
Size/MD5 checksum:  1400278 0552a9b54beb4a044951b7cdbc8fc855
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1.dsc
Size/MD5 checksum:      816 17ae5277bdf58c57ae3cf0d313c7c24d
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1.diff.gz
Size/MD5 checksum:    19612 a2b0de5bea28219d5e287f6074d7e705

Architecture independent packages:

http://security.debian.org/pool/updates/main/d/dbus/dbus-1-doc_1.0.2-1+etch1_all.deb
Size/MD5 checksum:  1538936 73d480306098e6b0f24062021706ace9

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_alpha.deb
Size/MD5 checksum:   184618 def6ceaebc79f683ce76cf53fa167466
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_alpha.deb
Size/MD5 checksum:   403498 436cd3405371283d763039834ad091bf
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_alpha.deb
Size/MD5 checksum:   288940 f545a2666a651cd883973f3ca0011879
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_alpha.deb
Size/MD5 checksum:   378018 f6f7ea92aa2e5067f6187f57340d9f72

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_amd64.deb
Size/MD5 checksum:   183978 3ceb93633944d3af0b00d6f08923bd6c
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_amd64.deb
Size/MD5 checksum:   363680 2e392e0cfab4a5cbbb75b5050a3cdf43
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_amd64.deb
Size/MD5 checksum:   348386 e066dc182c9c7f8c31d38979e2400aa1
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_amd64.deb
Size/MD5 checksum:   279076 1a133aa27937830c0e57a64f973e9a92

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_hppa.deb
Size/MD5 checksum:   375478 fab65297fd67a6be39d41165122a1d27
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_hppa.deb
Size/MD5 checksum:   184754 ee3497695d7a9f052cae7dd720930d34
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_hppa.deb
Size/MD5 checksum:   362190 3901ed06fc5bd028eb0164c08d1043d6
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_hppa.deb
Size/MD5 checksum:   285788 6b2768ccdd5af272d54f8ea3475a5a69

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_i386.deb
Size/MD5 checksum:   350980 062e8d4f7e6091b566723a452e2bfb56
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_i386.deb
Size/MD5 checksum:   335250 88c0dc6fae7b4d92adace225cb546765
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_i386.deb
Size/MD5 checksum:   183832 69141c3e3342ea9cc37282fe900ea8e3
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_i386.deb
Size/MD5 checksum:   268574 cc3063325ff8c52cf2b2b70ede8c0934

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_ia64.deb
Size/MD5 checksum:   186470 a922e423c66858c8521cdfb74265b920
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_ia64.deb
Size/MD5 checksum:   439204 7c03f136224406f9cdfb533d019b180b
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_ia64.deb
Size/MD5 checksum:   411344 0928e80a8620c2d16d3dd91e5996d0c3
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_ia64.deb
Size/MD5 checksum:   322306 34d62722c2afc0401c7dc5ed884e9abc

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_mips.deb
Size/MD5 checksum:   359320 543131dff9529461109bb6d31b2ff12f
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_mips.deb
Size/MD5 checksum:   183742 671c6a9b380cdfa2f6cb2d19366ec6a3
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_mips.deb
Size/MD5 checksum:   272146 cb19335f9af9d39184cb1b8378ef0c1c
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_mips.deb
Size/MD5 checksum:   370474 6d15f43916177eb1f7b2ffe46de2770e

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_mipsel.deb
Size/MD5 checksum:   358582 69ee571baccf2339032e443ca692ab4d
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_mipsel.deb
Size/MD5 checksum:   369430 bbffef31d92f51ce859cc323f1c9d403
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_mipsel.deb
Size/MD5 checksum:   184040 cc4b36a828a58fe863738b622da115dc
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_mipsel.deb
Size/MD5 checksum:   272226 9c12dc8a990ba63aaf2d96142c2fef16

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_powerpc.deb
Size/MD5 checksum:   335350 b8d93b5616a10655e3e92b434125167e
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_powerpc.deb
Size/MD5 checksum:   271608 9b5787f1e52a25905400308b691f3bc8
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_powerpc.deb
Size/MD5 checksum:   184072 92d5a2f0d880c6d6a7dce37e439b4cc8
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_powerpc.deb
Size/MD5 checksum:   353094 a5e6737c13f0628418778ed60b14382a

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_s390.deb
Size/MD5 checksum:   373206 f28f796f8277421caa2baeab1691ce9a
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_s390.deb
Size/MD5 checksum:   184484 d493f51e6a70ef89c0ea18bc55bbee8e
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_s390.deb
Size/MD5 checksum:   285176 1d044842d5e681aa68178fdc0a2f9aeb
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_s390.deb
Size/MD5 checksum:   354860 d74c38060f83b296b8154dc4d5f45ece

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-3_1.0.2-1+etch1_sparc.deb
Size/MD5 checksum:   264932 6e6e05b3e9e21c629cfc7e34ccb0affb
http://security.debian.org/pool/updates/main/d/dbus/dbus-1-utils_1.0.2-1+etch1_sparc.deb
Size/MD5 checksum:   184032 37e415cf39fd6f79f2d15619fa0acff7
http://security.debian.org/pool/updates/main/d/dbus/dbus_1.0.2-1+etch1_sparc.deb
Size/MD5 checksum:   339832 1c5aa280dd6c85a84aa055d42567df48
http://security.debian.org/pool/updates/main/d/dbus/libdbus-1-dev_1.0.2-1+etch1_sparc.deb
Size/MD5 checksum:   336064 5df693a86ae33bbbf5e135da8024d46e

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-2008:0159-01）以及相应补丁:
RHSA-2008:0159-01：Moderate: dbus security update
链接：https://www.redhat.com/support/errata/RHSA-2008-0159.html

D-Bus
-----
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://dbus.freedesktop.org/releases/dbus/dbus-1.0.3.tar.gz
http://dbus.freedesktop.org/releases/dbus/dbus-1.1.20.tar.gz

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