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安全漏洞
Ghostscript errprintf()函数PDF文件处理栈溢出漏洞
发布日期：2009-12-17
更新日期：2009-12-21
受影响系统：
Ghostscript Ghostscript 8.70描述：
Ghostscript Ghostscript 8.64
BUGTRAQ ID: 37410
CVE(CAN) ID: CVE-2009-4270
Ghostscript是用于显示PostScript文件或向非PostScript打印机打印这些文件的程序。
Ghostscript的base/gsmisc.c文件中的errprintf()函数在通过CUPS打印特制的PDF文件时存在栈溢出漏洞，如果特制的PDF能够导致打印失败，则gs cups驱动的某些调试输出就可以在gs调试处理中触发这个溢出，导致执行任意代码。
<*来源：David Srbecky （dsrbecky@gmail.com）
链接：http://secunia.com/advisories/37851/
http://bugs.ghostscript.com/long_list.cgi?buglist=690829
https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=540760
http://www.debian.org/security/2010/dsa-2080
*>
测试方法：
警 告
以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！
建议：
厂商补丁：
Debian
------
Debian已经为此发布了一个安全公告（DSA-2080-1）以及相应补丁:
DSA-2080-1：New ghostscript packages fix several vulnerabilities
链接：http://www.debian.org/security/2010/dsa-2080
补丁下载：
Source archives:
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4.diff.gz
Size/MD5 checksum: 104592 c1f5f4ee971ea44f4b0cef7488fea58a
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny2.diff.gz
Size/MD5 checksum: 104465 712a48aa6a1a28c2800ee3a950f24c93
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1.orig.tar.gz
Size/MD5 checksum: 12212309 42fc1b31aa745c3765c2fcd2da243236
Architecture independent packages:
http://security.debian.org/pool/updates/main/g/ghostscript/gs-gpl_8.62.dfsg.1-3.2lenny4_all.deb
Size/MD5 checksum: 28702 dcf8382cede0279d2ced25016b5d63b0
http://security.debian.org/pool/updates/main/g/ghostscript/gs-aladdin_8.62.dfsg.1-3.2lenny4_all.deb
Size/MD5 checksum: 28704 a62393cb1d1449c44398279e40804a20
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-doc_8.62.dfsg.1-3.2lenny4_all.deb
Size/MD5 checksum: 2784654 379db3cc220700a5320c0f3505ec6185
http://security.debian.org/pool/updates/main/g/ghostscript/gs_8.62.dfsg.1-3.2lenny4_all.deb
Size/MD5 checksum: 28692 f327874c01d90518ae69cc746ae8c245
http://security.debian.org/pool/updates/main/g/ghostscript/gs-common_8.62.dfsg.1-3.2lenny4_all.deb
Size/MD5 checksum: 28902 d790c6a598e425e86655613e3d842feb
http://security.debian.org/pool/updates/main/g/ghostscript/gs-esp_8.62.dfsg.1-3.2lenny4_all.deb
Size/MD5 checksum: 28696 6e1b2ffd61b41b2210c80035fa1c18d2
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_alpha.deb
Size/MD5 checksum: 66154 af55aa7bcd5471ef673c0c5f5fddf693
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_alpha.deb
Size/MD5 checksum: 36444 e2e1d7dbf80456743f43c063ddd31d2a
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_alpha.deb
Size/MD5 checksum: 797568 50220131de97010d530c84e4685b9ba3
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_alpha.deb
Size/MD5 checksum: 2629590 bf6713489c1974a68e72244cd0ab313e
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_amd64.deb
Size/MD5 checksum: 63102 b381fcd9f08a512ec234aefc4db55e6d
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_amd64.deb
Size/MD5 checksum: 794264 1d6aa96ecda1cc3caaee6e02ec8131d0
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_amd64.deb
Size/MD5 checksum: 36296 1c234970f6695e233c98f6c8b17a228d
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_amd64.deb
Size/MD5 checksum: 2322612 ff18916f3e0b984520dc6a65a1850545
arm architecture (ARM)
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_arm.deb
Size/MD5 checksum: 59898 691db1eafdbb597550e41936a588dc2e
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_arm.deb
Size/MD5 checksum: 2179214 fce17c2014ef0633694921ff7a2dbbf6
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_arm.deb
Size/MD5 checksum: 34898 94bfb293db43933b96defcc65c2ce1e4
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_arm.deb
Size/MD5 checksum: 796618 133283cd0ce5ad2ddfb180149dd1cdde
armel architecture (ARM EABI)
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_armel.deb
Size/MD5 checksum: 797658 bfee3d7ee43ecf42c762f707e15be417
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_armel.deb
Size/MD5 checksum: 63604 ba4c4769c7a604e1cbd65e42d4a20308
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_armel.deb
Size/MD5 checksum: 2214322 659428a1eb467fd459a8a10ac6e57f53
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_armel.deb
Size/MD5 checksum: 36442 59d91a5b9a24bec78946a5e01345589b
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_hppa.deb
Size/MD5 checksum: 66854 e46caba3e0fc3e99c9d672210b414c85
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_hppa.deb
Size/MD5 checksum: 2573688 98b1cb485944aeec0c762f4d3d6b5627
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_hppa.deb
Size/MD5 checksum: 36330 5a36e8704d153f1c1269ddbe3d37368e
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_hppa.deb
Size/MD5 checksum: 800058 3770d71e6644cf0bf82b5618c07879fe
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_i386.deb
Size/MD5 checksum: 35476 2c35e644cc7bc6d5a29125de9bda777c
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_i386.deb
Size/MD5 checksum: 2221692 263aab297fcd59829a0c5e0e2b0f1e6d
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_i386.deb
Size/MD5 checksum: 761660 44c35e23d34cb081bb785c5a89683701
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_i386.deb
Size/MD5 checksum: 60818 b150caecdd7fdd47538ac364b3a23baa
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_ia64.deb
Size/MD5 checksum: 80902 c44a55178f56e171274891ff828be57c
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_ia64.deb
Size/MD5 checksum: 36332 59188d6b794be8a8632f68c99e53fabe
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_ia64.deb
Size/MD5 checksum: 3613878 b2037a5a573797ed7e8db63b25c54980
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_ia64.deb
Size/MD5 checksum: 801702 f478ffb34fedecea724a6eff2c0c6aeb
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_mips.deb
Size/MD5 checksum: 62840 1bf8443154d4ed4a3d7329078b16839f
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_mips.deb
Size/MD5 checksum: 34916 965449e1371593ca5fdc0614c49f05ad
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_mips.deb
Size/MD5 checksum: 798628 3673f32bc99ec26b919ad9a5a53742bc
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_mips.deb
Size/MD5 checksum: 2304896 3713df01d5717a4d4af157cf0bb6fc88
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_mipsel.deb
Size/MD5 checksum: 35472 322427312d6cc997684dd4070f47e870
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_mipsel.deb
Size/MD5 checksum: 61774 22a19e60d87c94a8bcaa931b13f20179
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_mipsel.deb
Size/MD5 checksum: 762160 90c8fb7ba07e88329bb247ab49cf290f
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_mipsel.deb
Size/MD5 checksum: 2300466 2d7ba5f0f3cc18775f25bbd3881bd5f4
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_powerpc.deb
Size/MD5 checksum: 801086 eee24a6fc08a2e68405adc584d090819
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_powerpc.deb
Size/MD5 checksum: 36432 4b62009ca227ff2aa28808ba5a696c02
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_powerpc.deb
Size/MD5 checksum: 66012 ba51af4c986f7db06b66f7c3f3bef07e
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_powerpc.deb
Size/MD5 checksum: 2408918 14806baf03b217ba15b6808493f4d46b
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_s390.deb
Size/MD5 checksum: 36452 6a0cffde06a5f3fc635ac214fa874a94
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_s390.deb
Size/MD5 checksum: 2437882 dd3fd6a06b07f8d45c9f07b339fe26dc
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_s390.deb
Size/MD5 checksum: 64412 e60524ff7457eb9bf7a3430afcfba513
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_s390.deb
Size/MD5 checksum: 800832 c91e9753ad83a76eebdf9abc7694f681
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/g/ghostscript/libgs8_8.62.dfsg.1-3.2lenny4_sparc.deb
Size/MD5 checksum: 2187340 476ff570ae6d30c7f881caba112b6e34
http://security.debian.org/pool/updates/main/g/ghostscript/libgs-dev_8.62.dfsg.1-3.2lenny4_sparc.deb
Size/MD5 checksum: 36350 4970f1e66a790e2a7b0aa4b285363c07
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript_8.62.dfsg.1-3.2lenny4_sparc.deb
Size/MD5 checksum: 797876 f79742ddd68bee7476a39d4fde6ab68c
http://security.debian.org/pool/updates/main/g/ghostscript/ghostscript-x_8.62.dfsg.1-3.2lenny4_sparc.deb
Size/MD5 checksum: 59956 d7458a00b7f62c43b114aeff6deeec0c
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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