CVE-2005-4784
CVSS5.6
发布时间 :2005-12-31 00:00:00
修订时间 :2008-09-05 16:57:49
NMCO    

[原文]Multiple buffer overflows in the POSIX readdir_r function, as used in multiple packages, allow local users to cause a denial of service and possibly execute arbitrary code via (1) a symlink attack that exploits a race condition between opendir and pathcon calls and changes the filesystem to one with a larger maximum directory-entry name length, or (2) possibly via programmer-introduced errors on operating systems with a small struct dirent, such as Solaris or BeOS, as demonstrated in packages including (a) gcj, (b) KDE, (c) libwww, (d) the Rudiments library, (e) teTeX, (f) xmail, (g) bfbtester, (h) ncftp, (i) netwib, (j) OpenOffice.org, (k) Pike, (l) reprepro, (m) Tcl, and (n) xgsmlib.


[CNNVD]多个厂商ReadDir_R缓冲区溢出漏洞(CNNVD-200512-989)

        在多个包中使用时,POSIX readdir_r函数存在多个缓冲区溢出,本地用户可以通过(1)利用在opendir和pathcon调用之间的竞态条件的symlink攻击并变更文件系统为一个带有更大最大directtory-entry名字长度的系统,或(2)可能通过程序员引入的有关带有小结构指向的操作系统的错误,如Solaris或BeOS, 发起拒绝服务并可能执行任意代码,如在这些包中,包括(a)gcj,(b)KDE,(c)libwww,(d)Rudiments库,(e)teTeX,(f)xmail,(g)bfbtester,(h)ncftp,(i)netwib,(j)OpenOffice.org,(k)Pike,(l)reprepro,(m)Tcl和(n)xgsmlib。

- CVSS (基础分值)

CVSS分值: 5.6 [中等(MEDIUM)]
机密性影响: COMPLETE [完全的信息泄露导致所有系统文件暴露]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: COMPLETE [可能导致系统完全宕机]
攻击复杂度: HIGH [漏洞利用存在特定的访问条件]
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-2005-4784
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-4784
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200512-989
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/15259
(UNKNOWN)  BID  15259
http://www.securityfocus.com/archive/1/416048/30/0/threaded
(UNKNOWN)  BUGTRAQ  20051108 Re: readdir_r considered harmful
http://www.securityfocus.com/archive/1/416002/30/0/threaded
(UNKNOWN)  BUGTRAQ  20051106 Re: readdir_r considered harmful
http://www.securityfocus.com/archive/1/415999/30/0/threaded
(UNKNOWN)  BUGTRAQ  20051106 Re: readdir_r considered harmful
http://www.securityfocus.com/archive/1/415998/30/0/threaded
(UNKNOWN)  BUGTRAQ  20051106 Re: readdir_r considered harmful
http://www.securityfocus.com/archive/1/415995/30/0/threaded
(UNKNOWN)  BUGTRAQ  20051105 Re: readdir_r considered harmful
http://www.securityfocus.com/archive/1/415790/30/0/threaded
(UNKNOWN)  BUGTRAQ  20051105 Re: readdir_r considered harmful
http://www.securityfocus.com/archive/1/415781
(UNKNOWN)  BUGTRAQ  20051101 readdir_r considered harmful
http://womble.decadentplace.org.uk/readdir_r-advisory.html
(VENDOR_ADVISORY)  MISC  http://womble.decadentplace.org.uk/readdir_r-advisory.html

- 漏洞信息

多个厂商ReadDir_R缓冲区溢出漏洞
中危 缓冲区溢出
2005-12-31 00:00:00 2006-04-28 00:00:00
本地  
        在多个包中使用时,POSIX readdir_r函数存在多个缓冲区溢出,本地用户可以通过(1)利用在opendir和pathcon调用之间的竞态条件的symlink攻击并变更文件系统为一个带有更大最大directtory-entry名字长度的系统,或(2)可能通过程序员引入的有关带有小结构指向的操作系统的错误,如Solaris或BeOS, 发起拒绝服务并可能执行任意代码,如在这些包中,包括(a)gcj,(b)KDE,(c)libwww,(d)Rudiments库,(e)teTeX,(f)xmail,(g)bfbtester,(h)ncftp,(i)netwib,(j)OpenOffice.org,(k)Pike,(l)reprepro,(m)Tcl和(n)xgsmlib。

- 公告与补丁

        

- 漏洞信息

30975
POSIX readdir_r Function Local Overflow
Input Manipulation
Loss of Integrity

- 漏洞描述

Unknown or Incomplete

- 时间线

2005-11-01 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete
 

 

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