CVE-2006-3123
CVSS2.1
发布时间 :2006-08-07 15:04:00
修订时间 :2011-03-07 21:37:52
NMCOPS    

[原文]Multiple integer overflows in the (1) dodecrypt and (2) doencrypt functions in cfs_fh.c in cfsd in Matt Blaze Cryptographic File System (CFS) 1.4.1 before Debian GNU/Linux package 1.4.1-17 allow local users to cause a denial of service (daemon crash) by appending data to a file that is larger than 2 Gb.


[CNNVD]Debian GNU/Linux package cfs_fh.c程序 Cryptographic Filesystem Daemon本地拒绝服务漏洞(CNNVD-200608-091)

        Debian GNU/Linux package 1.4.1-17之前的Matt Blaze Cryptographic File System (CFS) 1.4.1版本中cfsd的cfs_fh.c程序的(1) dodecrypt函数和(2) doencrypt函数存在多个整数溢出,本地用户可通过对一个大于2Gb的文件添加数据来触发拒绝服务攻击(daemon崩溃)。

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

产品及版本信息(CPE)暂不可用

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3123
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-3123
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200608-091
(官方数据源) CNNVD

- 其它链接及资源

http://www.debian.org/security/2006/dsa-1138
(VENDOR_ADVISORY)  DEBIAN  DSA-1138
http://www.vupen.com/english/advisories/2006/3157
(UNKNOWN)  VUPEN  ADV-2006-3157
http://www.securityfocus.com/bid/19320
(UNKNOWN)  BID  19320
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=371076
(UNKNOWN)  CONFIRM  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=371076
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=371076
(UNKNOWN)  CONFIRM  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=371076
http://xforce.iss.net/xforce/xfdb/28288
(UNKNOWN)  XF  cfs-dodecrypt-dodencrypt-dos(28288)
http://secunia.com/advisories/21341
(UNKNOWN)  SECUNIA  21341
http://secunia.com/advisories/21310
(UNKNOWN)  SECUNIA  21310

- 漏洞信息

Debian GNU/Linux package cfs_fh.c程序 Cryptographic Filesystem Daemon本地拒绝服务漏洞
低危 缓冲区溢出
2006-08-07 00:00:00 2006-08-09 00:00:00
本地  
        Debian GNU/Linux package 1.4.1-17之前的Matt Blaze Cryptographic File System (CFS) 1.4.1版本中cfsd的cfs_fh.c程序的(1) dodecrypt函数和(2) doencrypt函数存在多个整数溢出,本地用户可通过对一个大于2Gb的文件添加数据来触发拒绝服务攻击(daemon崩溃)。

- 公告与补丁

        暂无数据

- 漏洞信息 (F49011)

Debian Linux Security Advisory 1138-1 (PacketStormID:F49011)
2006-08-17 00:00:00
Debian  debian.org
advisory,overflow,local
linux,debian
CVE-2006-3123
[点击下载]

Debian Security Advisory 1138-1 - Carlo Contavalli discovered an integer overflow in CFS, a cryptographic filesystem, which allows local users to crash the encryption daemon.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 1138-1                    security@debian.org
http://www.debian.org/security/                         Moritz Muehlenhoff
August 2nd, 2006                        http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : cfs
Vulnerability  : integer overflow
Problem-Type   : local
Debian-specific: no
CVE ID         : CVE-2006-3123
Debian Bug     : 371076

Carlo Contavalli discovered an integer overflow in CFS, a cryptographic
filesystem, which allows local users to crash the encryption daemon.

For the stable distribution (sarge) this problem has been fixed in
version 1.4.1-15sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 1.4.1-17.

We recommend that you upgrade your cfs package.


Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 3.1 alias sarge
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1.dsc
      Size/MD5 checksum:      520 460ec2da0664857b55354a40aaf71961
    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1.diff.gz
      Size/MD5 checksum:    18505 c9d5f2c91ee97c8c5b694da6806c0d24
    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1.orig.tar.gz
      Size/MD5 checksum:    98376 3ce2e01211dafe7bfb44849894926eda

  Alpha architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_alpha.deb
      Size/MD5 checksum:   276728 d9833bbbc249822a5f5be41e00a0fb94

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_amd64.deb
      Size/MD5 checksum:   206744 a4bdfb7c09afb0bda9cefbb87fd75452

  ARM architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_arm.deb
      Size/MD5 checksum:   211684 32f93d266c5985808660ed2f00730c41

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_i386.deb
      Size/MD5 checksum:   185708 e1fdcfb68fe51980f0540da732881b95

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_ia64.deb
      Size/MD5 checksum:   277636 f0e4fbd440bb5d4659bc204baa7befcb

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_hppa.deb
      Size/MD5 checksum:   225214 ba08b5b205afa8c52bfdb4d5798e3620

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_m68k.deb
      Size/MD5 checksum:   172456 1fd539cea16d172d2fc5a39574d703fd

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_mips.deb
      Size/MD5 checksum:   221410 a4c2daf1ccd1d711c62a5fbb01550f72

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_mipsel.deb
      Size/MD5 checksum:   221798 e905c5b13d8b300830ed3756907e989e

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_powerpc.deb
      Size/MD5 checksum:   211088 bb0ff12922878cb500579eb0a517f24b

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_s390.deb
      Size/MD5 checksum:   202360 37c5b60eea01e569e0024dd89a466a4c

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/c/cfs/cfs_1.4.1-15sarge1_sparc.deb
      Size/MD5 checksum:   202290 4a1753f9fdc695551b77829b383615f5

  These files will probably be moved into the stable distribution on
  its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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- 漏洞信息

27776
Cryptographic File System (CFS) cfsd dodecrypt/doencrypt Functions Multiple Overflows
Input Manipulation
Loss of Integrity
Vendor Verified

- 漏洞描述

Unknown or Incomplete

- 时间线

2006-06-07 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Cryptographic Filesystem Daemon Local Denial Of Service Vulnerability
Boundary Condition Error 19320
No Yes
2006-08-02 12:00:00 2006-08-03 08:26:00
Carlo Contavalli is credited with the discovery of this vulnerability.

- 受影响的程序版本

Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1

- 漏洞讨论

Cryptographic Filesystem (CFS) is prone to a local denial-of-service vulnerability.

A local attacker may crash the encryption daemon, resulting in denial-of-service conditions to legitimate users.

- 漏洞利用

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: vuldb@securityfocus.com

- 解决方案

Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: vuldb@securityfocus.commailto:vuldb@securityfocus.com.

Please see the referenced advisories for third-party updates.

- 相关参考

 

 

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