信息提供： | 安全公告（或线索）提供热线：51cto.editor@gmail.com |
漏洞类别： | 溢出错误 |
攻击类型： | 本地越权访问 |
发布日期： | 2003-06-18 |
更新日期： | 2003-08-14 |
受影响系统： | xpcd xpcd 2.08 - Debian Linux 3.0 |
安全系统： | 无 |
漏洞报告人： | Debian Security Advisory |
漏洞描述： | BUGTRAQ ID: 8370 CVE(CAN) ID: CVE-2003-0649 xpcd是一款Linux系统下的相片光盘工具。 xpcd不正确处理HOME环境变量名，本地攻击者可以利用这个漏洞进行缓冲区溢出攻击，可能以root用户权限在系统上执行任意指令。 攻击者提供超长HOME环境变量值，执行xpcd的时候可触发缓冲区溢出，精心构建提交数据可能以root用户权限在系统上执行任意指令。 |
测试方法： | 无 |
解决方法： | 厂商补丁： Debian ------ Debian已经为此发布了一个安全公告（DSA-368-1）以及相应补丁: DSA-368-1：New xpcd packages fix buffer overflow 链接：http://www.debian.org/security/2002/dsa-368 补丁下载： Source archives: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1.dsc Size/MD5 checksum: 706 4fb68483cbb6d45728f47e5c61b3eaff http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1.diff.gz Size/MD5 checksum: 14077 f0e7c9e426744ccf0bcfbce07197bfb3 http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08.orig.tar.gz Size/MD5 checksum: 103104 59bf5b8d0466ecb3c58ed1fffcdf499e Alpha architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_alpha.deb Size/MD5 checksum: 80992 68a06c0a55a1310f2f7bb04605ce2d68 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_alpha.deb Size/MD5 checksum: 13352 bb4948c36af672bb59b16741ee35f3f1 ARM architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_arm.deb Size/MD5 checksum: 67922 851e5199d0eff2f142ff1a0ae7dec210 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_arm.deb Size/MD5 checksum: 11810 b6c7ee2ae9af286bd077bfb0bca66423 Intel IA-32 architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_i386.deb Size/MD5 checksum: 64238 cfa0b813d7fda7c9b5dbe66700d3d13f http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_i386.deb Size/MD5 checksum: 11708 280a130ec6054eca1f8f3b4be94b9744 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-svga_2.08-8woody1_i386.deb Size/MD5 checksum: 20822 5cb42524e3ce21f35bc43aa5ef7f9967 Intel IA-64 architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_ia64.deb Size/MD5 checksum: 97682 249299d45d8a1539799969d2eb82ecf9 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_ia64.deb Size/MD5 checksum: 15310 4218754ba8daa1991e67ea7dada45c0a HP Precision architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_hppa.deb Size/MD5 checksum: 73288 1cf15bb993b1c4f4d648b0a87f021da4 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_hppa.deb Size/MD5 checksum: 12800 fb8bd7ac68ce65630c4678de898b9702 Motorola 680x0 architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_m68k.deb Size/MD5 checksum: 62626 45a7e74314164cfbf6de164da91331f6 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_m68k.deb Size/MD5 checksum: 11488 6c68962e1cc32a221ebe11357790f21e Big endian MIPS architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_mips.deb Size/MD5 checksum: 73488 43e5783d423f3054a57b55d95bd0d214 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_mips.deb Size/MD5 checksum: 12594 72855f1617071135eebee4c12867a26a Little endian MIPS architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_mipsel.deb Size/MD5 checksum: 73164 9d006b85dc71297638479002a0260fe0 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_mipsel.deb Size/MD5 checksum: 12558 ccffee63fc2c8c35e5a87ce0cb450a37 PowerPC architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_powerpc.deb Size/MD5 checksum: 68436 752053140f35df568c14c8abc5f2e7ef http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_powerpc.deb Size/MD5 checksum: 11896 fbbd067d762d0d6f7ba4e2a92dd67397 IBM S/390 architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_s390.deb Size/MD5 checksum: 69600 60c613113c20c8bf80b1a9d44836697b http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_s390.deb Size/MD5 checksum: 12486 8b63fbf6feeaaf4a3b1c64674bcfca9b Sun Sparc architecture: http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody1_sparc.deb Size/MD5 checksum: 72736 db142879397f6e3723641acee424f3b5 http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody1_sparc.deb Size/MD5 checksum: 11780 3acbff9fae774d384aa8546048a2ea40 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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