发布日期：2008-08-05
更新日期：2008-08-06

受影响系统：

GIT GIT 1.5.6.3

不受影响系统：

GIT GIT 1.5.6.4

描述：

---

BUGTRAQ  ID: 30549
CVE(CAN) ID: CVE-2008-3546

Git是一款开放源码的版本控制系统。

Git的多个函数没有正确地处理超长的代码库路径名，如果路径名大于系统上的PATH_MAX值的话，则用户对该代码库运行git-diff或git-grep的话就会在diff_addremove()和diff_change()函数中触发栈溢出，导致执行任意指令。

<*来源：Dmitry Potapov （dpotapov@gmail.com）
  
  链接：http://secunia.com/advisories/31347/
        http://www.kernel.org/pub/software/scm/git/docs/RelNotes-1.5.6.4.txt
        http://kerneltrap.org/mailarchive/git/2008/7/16/2529284
        http://www.debian.org/security/2008/dsa-1637
*>

建议：

---

厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-1637-1）以及相应补丁:
DSA-1637-1：New git-core packages fix buffer overflow
链接：http://www.debian.org/security/2008/dsa-1637

补丁下载：
Source archives:

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1.dsc
Size/MD5 checksum:      801 e1da32690d937c31112734e3a568a6b2
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4.orig.tar.gz
Size/MD5 checksum:  1054130 99bc7ea441226f792b6f796a838e7ef0
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1.diff.gz
Size/MD5 checksum:    80042 b10d0f2f899b73e92cc22fd0e7616f8a

Architecture independent packages:

http://security.debian.org/pool/updates/main/g/git-core/git-arch_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:    68534 bc1c4be53e445eb2a9a1cba42410f85e
http://security.debian.org/pool/updates/main/g/git-core/git-cvs_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:    93752 fbbef80ad27745f79072bce3e5ae3a96
http://security.debian.org/pool/updates/main/g/git-core/git-email_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:    62850 dfaff5a7df0025792768a536fae519af
http://security.debian.org/pool/updates/main/g/git-core/gitweb_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:    88008 b10f4275020e838c1fb1a1af6ccef056
http://security.debian.org/pool/updates/main/g/git-core/git-daemon-run_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:    55366 5b7be4b5951849b301d1faddf831dff8
http://security.debian.org/pool/updates/main/g/git-core/git-doc_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:   466200 0a21d338c7741147ff36242abaf3b402
http://security.debian.org/pool/updates/main/g/git-core/git-svn_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:   100590 990844afb17ba526bbffb49796497b6e
http://security.debian.org/pool/updates/main/g/git-core/gitk_1.4.4.4-2.1+etch1_all.deb
Size/MD5 checksum:    99352 a2d4c126758efa9fa9a549e8736f80a3

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_alpha.deb
Size/MD5 checksum:  3092536 10a91198e5606dc6b1f6037803389d53

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_amd64.deb
Size/MD5 checksum:  2627502 3fad9097fef2d907e66a28c9cb3f9684

arm architecture (ARM)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_arm.deb
Size/MD5 checksum:  2317560 de4bd89d3a608df2b1216f86cf0b8b53

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_hppa.deb
Size/MD5 checksum:  2692126 53c2bf7b21e779e94c34405201be7910

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_i386.deb
Size/MD5 checksum:  2330734 769253444bc1f266f706bc742bec86ee

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_ia64.deb
Size/MD5 checksum:  3813238 65d7e5064d427e425173653300a6b5c6

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_mips.deb
Size/MD5 checksum:  2784982 4cd7c71d0cb63880562ec56b9c30ba0f

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_mipsel.deb
Size/MD5 checksum:  2799604 8cedf2b70c763b893500a04d42ffa82d

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_powerpc.deb
Size/MD5 checksum:  2636198 fe400a070ce9d89c60dc619334501d94

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_s390.deb
Size/MD5 checksum:  2620338 2c0192889678a8159a26c1f8c9d3a970

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-2.1+etch1_sparc.deb
Size/MD5 checksum:  2278862 cd969645dfe4fb36e457dabc3a5c7516

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

GIT
---
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://www.kernel.org/pub/software/scm/git/git-1.5.6.4.tar.gz

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