发布日期：2005-07-21
更新日期：2005-07-29

受影响系统：

KDE KDE 3.4.1
KDE KDE 3.4
KDE KDE 3.3.2
KDE KDE 3.3.1
KDE KDE 3.3
KDE KDE 3.2.3
KDE kopete 0.9.3
KDE kopete 0.9.2
KDE kopete 0.9.1
KDE kopete 0.9
EKG EKG 2005-06-05 22:03
EKG EKG 2005-04-11
EKG EKG 1.6 rc2
EKG EKG 1.6 rc1
EKG EKG 1.5
EKG EKG 1.4
EKG EKG 1.3
EKG EKG 1.1

不受影响系统：

KDE kopete 0.9.4
KDE kopete 0.10.3
EKG EKG 1.6 rc3

描述：

---

BUGTRAQ  ID: 14345
CVE(CAN) ID: CVE-2005-1852

Eksperymentalny Klient Gadu-Gadu（EKG）是一款支持Gadu-Gadu的通信客户端程序。

EKG libgadu中存在多个远程整数溢出漏洞，攻击者可以利用这个漏洞执行任意机器代码。失败的攻击尝试可能导致拒绝服务。

起因是在内存分配和拷贝操作中使用用户输入数据之前没有正确的执行过滤。

<*来源：Dirk Mueller （mueller@kde.org）
  
  链接：http://marc.theaimsgroup.com/?l=bugtraq&m=112197091504732&w=2
        http://www.debian.org/security/2005/dsa-767
        http://security.gentoo.org/glsa/glsa-200507-23.xml
        http://lwn.net/Alerts/144695/?format=printable
*>

建议：

---

厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-767-1）以及相应补丁:
DSA-767-1：New ekg packages fix arbitrary code execution
链接：http://www.debian.org/security/2005/dsa-767

补丁下载：
Source archives:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5.dsc
Size/MD5 checksum:      755 0a4dd15d5f23220c73d696d62265c1d4
http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5.diff.gz
Size/MD5 checksum:    41235 8669470feccbca9de2ac450552d6eb71
http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411.orig.tar.gz
Size/MD5 checksum:   495079 bc246779de6f6c97f289e60b60db6c14

Alpha architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_alpha.deb
Size/MD5 checksum:   310850 fe81e27bb04240c67ff3f31f4fadcffd
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_alpha.deb
Size/MD5 checksum:   151162 dc0eb72185be0e3cf7d1c4e612129d68
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_alpha.deb
Size/MD5 checksum:    69440 79294f2cb200c635e795b9d912897efb

ARM architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_arm.deb
Size/MD5 checksum:   267822 6f0fe64135665fd11faae258e9c460c7
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_arm.deb
Size/MD5 checksum:   129172 8d92dd6bec4e540903b5b6640a410230
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_arm.deb
Size/MD5 checksum:    62356 625c93deb1e18425278102826c827f31

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_i386.deb
Size/MD5 checksum:   269532 1f13f412b2b2023f73ef5e9bbc5154e5
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_i386.deb
Size/MD5 checksum:   126228 0626fecd7597e951c44c189e3e660a4d
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_i386.deb
Size/MD5 checksum:    63318 9aedc4189316ec9dc26c1157e1f92354

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_ia64.deb
Size/MD5 checksum:   355246 03573f0afd474c1bad8520579b4c6a21
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_ia64.deb
Size/MD5 checksum:   150102 2f1d0a6785e0ff778dbb5f233bfee220
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_ia64.deb
Size/MD5 checksum:    80026 3739d8bc070f2407e9ba99d6582ac656

HP Precision architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_hppa.deb
Size/MD5 checksum:   287940 97188e3e8ec38f3498371bbaf67da44f
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_hppa.deb
Size/MD5 checksum:   135536 dc8ea782a4ac0919efd6410e1b45a228
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_hppa.deb
Size/MD5 checksum:    68934 25b7ec8ead9cfd53953edda6a4c915e7

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_m68k.deb
Size/MD5 checksum:   248620 4e62eeab49baa0ff741a1ac422114496
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_m68k.deb
Size/MD5 checksum:   121684 56c8215a9343634f7c93f27751aa6016
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_m68k.deb
Size/MD5 checksum:    61942 a5cab76724489bb8e0bb06c39bcd712c

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_mips.deb
Size/MD5 checksum:   280808 8cac6453dcf26e96235e67eccaaba0f8
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_mips.deb
Size/MD5 checksum:   131956 b705e567569d4592c87f7a805c44eabb
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_mips.deb
Size/MD5 checksum:    61734 a3f3570b19442fef834adcb9d28c325f

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_mipsel.deb
Size/MD5 checksum:   280478 4cd7aaa3049100c4a13157faafd46298
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_mipsel.deb
Size/MD5 checksum:   131922 a4b4f35bbdf10f285b9d9c8cb456d789
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_mipsel.deb
Size/MD5 checksum:    61748 23f0431d1e8e7b7907e014c513496efb

PowerPC architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_powerpc.deb
Size/MD5 checksum:   280580 44ad19fb83111a81fddd1236b80f3ee8
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_powerpc.deb
Size/MD5 checksum:   131614 ee93119d08312377273561e61812bf93
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_powerpc.deb
Size/MD5 checksum:    65722 96491a7ed70baa39d8c8279f212408f9

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_s390.deb
Size/MD5 checksum:   279066 816a56d92d17909983bed5b4984078d3
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_s390.deb
Size/MD5 checksum:   128784 313ce32bf5b962305dbfa9122183a55f
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_s390.deb
Size/MD5 checksum:    64208 a11b06985d689bf7090dcc87791060cc

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/e/ekg/ekg_1.5+20050411-5_sparc.deb
Size/MD5 checksum:   269476 e290e65311a8ac297a9b2ccd44bc670e
http://security.debian.org/pool/updates/main/e/ekg/libgadu-dev_1.5+20050411-5_sparc.deb
Size/MD5 checksum:   128170 7727d61fc8393d8e607c3c22a8e55921
http://security.debian.org/pool/updates/main/e/ekg/libgadu3_1.5+20050411-5_sparc.deb
Size/MD5 checksum:    64270 77f34112d75dfe4f001f69f09894864f

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

KDE
---
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：

KDE KDE 3.2.3
* KDE Patch post-3.2.3-kdenetwork-libgadu.patch
ftp://ftp.kde.org/pub/kde/security_patches/post-3.2.3-kdenetwork-libgadu.patch
    
KDE KDE 3.3.2
* KDE Patch post-3.3.2-kdenetwork-libgadu.patch
ftp://ftp.kde.org/pub/kde/security_patches/post-3.3.2-kdenetwork-libgadu.patch
    
KDE KDE 3.4.1
* KDE Patch post-3.4.1-kdenetwork-libgadu.patch
ftp://ftp.kde.org/pub/kde/security_patches/post-3.4.1-kdenetwork-libgadu.patch

RedHat
------
RedHat已经为此发布了一个安全公告（RHSA-2005:639-01）以及相应补丁:
RHSA-2005:639-01：Critical: kdenetwork security update
链接：http://lwn.net/Alerts/144695/?format=printable

Gentoo
------
Gentoo已经为此发布了一个安全公告（GLSA-200507-23）以及相应补丁:
GLSA-200507-23：Kopete: Vulnerability in included Gadu library
链接：http://security.gentoo.org/glsa/glsa-200507-23.xml

所有Kopete用户都应升级到最新版本：

    # emerge --sync
    # emerge --ask --oneshot --verbose kde-base/kdenetwork

所有KDE Split Ebuild Kopete用户都应升级到最新版本：

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kopete-3.4.1-r1"

EKG
---
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://dev.null.pl/ekg/ekg-1.6rc3.tar.gz

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