CVE-2001-1166
CVSS5.0
发布时间 :2001-08-21 00:00:00
修订时间 :2008-09-05 16:25:51
NMCO    

[原文]linprocfs on FreeBSD 4.3 and earlier does not properly restrict access to kernel memory, which allows one process with debugging rights on a privileged process to read restricted memory from that process.


[CNNVD]FreeBSD linprocfs受限内存读取漏洞(CNNVD-200108-090)

        FreeBSD 4.3版本及之前版本的linprocfs不能正确地限制到内核内存的访问,一个带有对特许进程调试权利的进程可以读取来自那个进程的受限内存。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: NONE [对系统可用性无影响]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
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)

cpe:/o:freebsd:freebsd:4.2FreeBSD 4.2
cpe:/o:freebsd:freebsd:4.3FreeBSD 4.3
cpe:/o:freebsd:freebsd:4.0FreeBSD 4.0
cpe:/o:freebsd:freebsd:4.1FreeBSD 4.1

- 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-2001-1166
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2001-1166
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200108-090
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/3217
(VENDOR_ADVISORY)  BID  3217
http://www.iss.net/security_center/static/7017.php
(VENDOR_ADVISORY)  XF  linprocfs-process-memory-leak(7017)
http://www.osvdb.org/1938
(UNKNOWN)  OSVDB  1938
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:55.procfs.asc
(UNKNOWN)  FREEBSD  FreeBSD-SA-01:55

- 漏洞信息

FreeBSD linprocfs受限内存读取漏洞
中危 未知
2001-08-21 00:00:00 2005-05-02 00:00:00
远程  
        FreeBSD 4.3版本及之前版本的linprocfs不能正确地限制到内核内存的访问,一个带有对特许进程调试权利的进程可以读取来自那个进程的受限内存。

- 公告与补丁

        

- 漏洞信息

1938
FreeBSD linprocfs Privileged Process Memory Disclosure
Local Access Required Information Disclosure
Loss of Confidentiality

- 漏洞描述

linprocfs on FreeBSD 4.3 and earlier does not properly restrict access to kernel memory, which allows one process with debugging rights on a privileged process to read restricted memory from that process.

- 时间线

2001-08-21 Unknow
Unknow Unknow

- 解决方案

Upgrade to version 4.3-STABLE or the RELENG_4_3 security branch, dated after the respective correction dates, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s): unmount all instances of the procfs and linprocfs filesystems. #umount -f -a -t procfs #umount -f -a -t linprocfs

- 相关参考

- 漏洞作者

 

 

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