CVE-2006-0379
CVSS2.1
发布时间 :2006-01-25 17:03:00
修订时间 :2008-09-05 16:59:06
NMCOS    

[原文]FreeBSD kernel 5.4-STABLE and 6.0 does not completely initialize a buffer before making it available to userland, which could allow local users to read portions of kernel memory.


[CNNVD]FreeBSD多个本地内存泄露漏洞(CNNVD-200601-336)

        FreeBSD就是一种运行在Intel平台上、可以自由使用的开放源码的Unix类系统。
        FreeBSD的内核实现上存在多个漏洞,可能导致向非授权用户泄露内核内存信息。一个漏洞是由于内核向用户态缓冲区复制数据时没有正确地清除原有内容,另一个漏洞是由于向用户缓冲区复制了过多的数据。

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
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: 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)

cpe:/o:freebsd:freebsd:6.0:stable
cpe:/o:freebsd:freebsd:5.4:stable

- 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-2006-0379
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-0379
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200601-336
(官方数据源) CNNVD

- 其它链接及资源

http://secunia.com/advisories/18599
(VENDOR_ADVISORY)  SECUNIA  18599
http://www.securityfocus.com/bid/16373
(UNKNOWN)  BID  16373
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:06.kmem.asc
(UNKNOWN)  FREEBSD  FreeBSD-SA-06:06
http://xforce.iss.net/xforce/xfdb/24338
(UNKNOWN)  XF  bsd-buffer-initialization-disclosure(24338)
http://www.osvdb.org/22730
(UNKNOWN)  OSVDB  22730
http://securitytracker.com/id?1015541
(UNKNOWN)  SECTRACK  1015541

- 漏洞信息

FreeBSD多个本地内存泄露漏洞
低危 设计错误
2006-01-25 00:00:00 2006-01-26 00:00:00
本地  
        FreeBSD就是一种运行在Intel平台上、可以自由使用的开放源码的Unix类系统。
        FreeBSD的内核实现上存在多个漏洞,可能导致向非授权用户泄露内核内存信息。一个漏洞是由于内核向用户态缓冲区复制数据时没有正确地清除原有内容,另一个漏洞是由于向用户缓冲区复制了过多的数据。

- 公告与补丁

        目前厂商已经发布了升级补丁以修复这个安全问题,补丁下载链接:
        FreeBSD FreeBSD 5.4-STABLE
        FreeBSD kmem.patch
        ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-06:06/kmem.patch
        FreeBSD FreeBSD 6.0 -RELEASE
        FreeBSD kmem60.patch
        ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-06:06/kmem60.patch
        FreeBSD FreeBSD 6.0 -STABLE
        FreeBSD kmem.patch
        ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-06:06/kmem.patch

- 漏洞信息

22730
FreeBSD Uninitialized Buffer Arbitrary Kernel Memory Disclosure
Local Access Required Information Disclosure
Loss of Confidentiality

- 漏洞描述

FreeBSD contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered when a buffer allocated from the kernel stack is not completely initialized before being copied to userland, which may disclose portions of kernel memory resulting in a loss of confidentiality.

- 时间线

2006-01-25 Unknow
Unknow Unknow

- 解决方案

Upgrade to version 5-STABLE or 6-STABLE, or to the RELENG_6_0 security branch dated after the correction date, as it has been reported to fix this vulnerability. In addition, FreeBSD has released a patch for some older versions.

- 相关参考

- 漏洞作者

- 漏洞信息

FreeBSD Multiple Local Kernel Memory Disclosure Vulnerabilities
Design Error 16373
No Yes
2006-01-25 12:00:00 2006-02-07 08:53:00
Xin LI and Karl Janmar discovered these issues.

- 受影响的程序版本

FreeBSD FreeBSD 6.0 -STABLE
FreeBSD FreeBSD 6.0 -RELEASE
FreeBSD FreeBSD 5.4 -RELENG
FreeBSD FreeBSD 5.4 -RELEASE
FreeBSD FreeBSD 5.4 -PRERELEASE
FreeBSD FreeBSD 5.4-STABLE

- 漏洞讨论

FreeBSD is prone to multiple local kernel memory-disclosure vulnerabilities. One issue is due to the kernel's failure to properly clear previously used memory buffers before copying them to userspace. The other issue is due to a flaw that potentially results in too much data being copied to user memory.

These vulnerabilities allow local attackers to gain access to potentially sensitive kernel memory. Access to this data may aid miscreants in further attacks.

- 漏洞利用

An exploit is not required.

- 解决方案

FreeBSD has released advisory FreeBSD-SA-06:06.kmem to address these issues. Please see the referenced advisory for further information.


FreeBSD FreeBSD 5.4-STABLE

FreeBSD FreeBSD 6.0 -RELEASE

FreeBSD FreeBSD 6.0 -STABLE

- 相关参考

 

 

关于SCAP中文社区

SCAP中文社区是国内第一个以SCAP为主题的中文开放社区。了解更多信息,请查阅[关于本站]

版权声明

CVE/CWE/OVAL均为MITRE公司的注册商标,它们的官方数据源均保存在MITRE公司的相关网站