发布日期：2002-08-06
更新日期：2002-08-06

受影响系统：

libpng libpng 1.0.12

描述：

---

BUGTRAQ  ID: 5409
CVE(CAN) ID: CVE-2002-0660

libPNG是一款绘图程序库，用于显示PNG图象格式文件。

libPNG在处理超宽的页边空行图象时存在问题，远程攻击者可以利用这个漏洞破坏内存信息，可能导致以服务器程序进程的权限执行任意指令。

攻击者可以发送包含超宽的页边空行设置的PNG图象，当libPNG库处理的时候，可导致内存破坏，精心构建页边空行数据可能以服务器程序进程的权限执行任意指令。不过没有得到证实。

<*来源：Debian Security Advisory
  
  链接：http://marc.theaimsgroup.com/?l=bugtraq&m=102858558321355&w=2
        http://www.debian.org/security/2002/dsa-140
*>

建议：

---

厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-140-2）以及相应补丁:
DSA-140-2：New libpng packages fix potential buffer overflow
链接：http://www.debian.org/security/2002/dsa-140

补丁下载：

Source archives:

http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.0.12-3.woody.2.dsc
Size/MD5 checksum:      579 6fa91023a699b539f8406572acabcd45
http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.0.12-3.woody.2.diff.gz
Size/MD5 checksum:     7914 5e876cff104633b6ded3930b3c16aaa6
http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.0.12.orig.tar.gz
Size/MD5 checksum:   481387 3329b745968e41f6f9e55a4d04a4964c
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2.dsc
Size/MD5 checksum:      582 1ad71907a2745b4a4c66ba57399b7f12
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2.diff.gz
Size/MD5 checksum:     8303 e72f6a3a38b4cace1971ca1c0b5bc20a
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1.orig.tar.gz
Size/MD5 checksum:   493105 75a21cbfae566158a0ac6d9f39087c4d

Alpha architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_alpha.deb
Size/MD5 checksum:   276344 6ef427edc12b2b6f1c1cb9f70e9922f8
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_alpha.deb
Size/MD5 checksum:   129748 c9c8197d16b91ad721d92c53de44d640
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_alpha.deb
Size/MD5 checksum:   270238 4c6cf35a90dbbe8f7d781a6f0d7d5583
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_alpha.deb
Size/MD5 checksum:   133154 220f5cd5020a19ed67b40208d5ece6c8

ARM architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_arm.deb
Size/MD5 checksum:   247430 69afbfe0aeb0e3c08a334a84b3e8cb77
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_arm.deb
Size/MD5 checksum:   108224 e1707faafae8955ebeae6ef3cbf70c9a
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_arm.deb
Size/MD5 checksum:   241200 98a7ce949f1c89161a002516042d9ebd
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_arm.deb
Size/MD5 checksum:   111508 791721c2c467b7c0b6fe666b9299a2d4

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_i386.deb
Size/MD5 checksum:   233094 f9889af54e78f47eebe1fa5a60ef33cb
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_i386.deb
Size/MD5 checksum:   106636 c9369f9eb9ae747365cdccf40acc3c2d
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_i386.deb
Size/MD5 checksum:   227308 4c452324c7308dcd268128fbe4b6439f
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_i386.deb
Size/MD5 checksum:   109802 8694e5afdb6f0c0c9e13b9f24aac8f63

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_ia64.deb
Size/MD5 checksum:   278606 4e66108c22e624861a905bc5e5b55626
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_ia64.deb
Size/MD5 checksum:   146174 91852036ba0ebff0f3734b9333a07388
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_ia64.deb
Size/MD5 checksum:   271448 ac0dcd865700840d0efd2c36df1a217a
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_ia64.deb
Size/MD5 checksum:   150852 f95379f323df7cd53c0fee8c8dfdde3d

HP Precision architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_hppa.deb
Size/MD5 checksum:   269384 48798cfcd2fce8157bb25e34b3b3bfc3
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_hppa.deb
Size/MD5 checksum:   128266 85ff01a845db01cbdb5146c008f1a03d
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_hppa.deb
Size/MD5 checksum:   262318 2dff123a3e2df906b66b02885048d412
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_hppa.deb
Size/MD5 checksum:   132326 d3a294616ae7e5c710686d058641c7a8

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_m68k.deb
Size/MD5 checksum:   226070 2f6a7ba8598056d782f590ea436caf36
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_m68k.deb
Size/MD5 checksum:   103264 8f806c4dc79c2b3f83eff41dfe2c3ed8
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_m68k.deb
Size/MD5 checksum:   220478 0a21d4692ce16aa98bfb1b1f9be699c8
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_m68k.deb
Size/MD5 checksum:   106256 c36180e064f5a8375e51b7c021b84338

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_mips.deb
Size/MD5 checksum:   246798 b026c3d8bbd5aebbd1c5165e38a40895
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_mips.deb
Size/MD5 checksum:   108336 de2f358f510ab45d26ec566a16a653ce
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_mips.deb
Size/MD5 checksum:   240378 f6f86bb6a308189f6681b9d3c78207e4
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_mips.deb
Size/MD5 checksum:   111730 036b8290d2c590a52b40a4e4d297c97f

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_mipsel.deb
Size/MD5 checksum:   246750 bce709abe60767e9148ee8bd2f31bf79
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_mipsel.deb
Size/MD5 checksum:   108208 c858c8d26f79ed9fa86e0b4a273a0a62
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_mipsel.deb
Size/MD5 checksum:   240266 f0e223ddf818ecb5cdaaed0d9b5be1d1
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_mipsel.deb
Size/MD5 checksum:   111642 fee8803a26ef4fc3eb5a84f3d7f34929

PowerPC architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_powerpc.deb
Size/MD5 checksum:   240358 e45598add532892d4f9e78689746e5ba
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_powerpc.deb
Size/MD5 checksum:   109638 20caff5351a2c73b4c60351b962e7547
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_powerpc.deb
Size/MD5 checksum:   234366 a4cf783b849f32d3e587b4f98ece26fd
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_powerpc.deb
Size/MD5 checksum:   112708 0d6696004fc745980d816921e3ec440b

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_s390.deb
Size/MD5 checksum:   232366 8c7e8d41b3d14d2e08f97a1fc8914c9c
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_s390.deb
Size/MD5 checksum:   107324 43e46e6174fd4052b2ea103c6771ad4d
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_s390.deb
Size/MD5 checksum:   226490 1a081fc6435c091bc824f898a848d2d7
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_s390.deb
Size/MD5 checksum:   110792 880a6b36459adddbf80ed9ec19f741fd

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/libp/libpng3/libpng-dev_1.2.1-1.1.woody.2_sparc.deb
Size/MD5 checksum:   237660 f1efbe23919ea8d37e3ebe57597a7bbd
http://security.debian.org/pool/updates/main/libp/libpng/libpng2_1.0.12-3.woody.2_sparc.deb
Size/MD5 checksum:   109716 9db86c437af56a16f200977b68cb84b8
http://security.debian.org/pool/updates/main/libp/libpng/libpng2-dev_1.0.12-3.woody.2_sparc.deb
Size/MD5 checksum:   231820 ae29d63b9698612331035f894ef3755a
http://security.debian.org/pool/updates/main/libp/libpng3/libpng3_1.2.1-1.1.woody.2_sparc.deb
Size/MD5 checksum:   113114 3cadf1a05fb83ce6476423243ac16806

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

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