CVE-2005-4776
CVSS7.2
发布时间 :2005-12-31 00:00:00
修订时间 :2008-09-05 16:57:48
NMCO    

[原文]Integer overflow in the FreeBSD compatibility code (freebsd_misc.c) in NetBSD-current, NetBSD-3, NetBSD-2.0, and NetBSD-2 before 20050913; and NetBSD-1.6 before 20050914; allows local users to cause a denial of service (heap corruption or system crash) and possibly gain root privileges.


[CNNVD]NetBSD-current、NetBSD-3、NetBSD-2.0和NetBSD-2 整数溢出漏洞(CNNVD-200512-950)

        NetBSD-current、NetBSD-3、NetBSD-2.0和NetBSD-2的20050913之前版本;和NetBSD-1.6的20050914之前版本中的FreeBSD兼容代码(freebsd_misc.c)存在整数溢出,本地用户可以发起拒绝服务攻击(堆破坏或系统崩溃)并可能获取root权限。

- CVSS (基础分值)

CVSS分值: 7.2 [严重(HIGH)]
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: COMPLETE [系统完整性可被完全破坏]
可用性影响: COMPLETE [可能导致系统完全宕机]
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:netbsd:netbsd:2.0NetBSD 2.0
cpe:/o:netbsd:netbsd:1.6:betaNetBSD 1.6 Beta
cpe:/o:netbsd:netbsd:1.6.1NetBSD 1.6.1
cpe:/o:netbsd:netbsd:2.0.2NetBSD 2.0.2
cpe:/o:netbsd:netbsd:2.0.1NetBSD 2.0.1
cpe:/o:netbsd:netbsd:1.6NetBSD 1.6
cpe:/o:netbsd:netbsd:1.6.2NetBSD 1.6.2

- 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-2005-4776
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-4776
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200512-950
(官方数据源) CNNVD

- 其它链接及资源

http://www.osvdb.org/20757
(PATCH)  OSVDB  20757
http://mail-index.netbsd.org/source-changes/2005/09/13/0024.html
(PATCH)  MLIST  [source-changes] 20050913 CVS commit: [netbsd-3] src/sys/compat/freebsd
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2005-008.txt.asc
(VENDOR_ADVISORY)  NETBSD  NetBSD-SA2005-008

- 漏洞信息

NetBSD-current、NetBSD-3、NetBSD-2.0和NetBSD-2 整数溢出漏洞
高危 缓冲区溢出
2005-12-31 00:00:00 2006-04-28 00:00:00
本地  
        NetBSD-current、NetBSD-3、NetBSD-2.0和NetBSD-2的20050913之前版本;和NetBSD-1.6的20050914之前版本中的FreeBSD兼容代码(freebsd_misc.c)存在整数溢出,本地用户可以发起拒绝服务攻击(堆破坏或系统崩溃)并可能获取root权限。

- 公告与补丁

        

- 漏洞信息

20757
NetBSD FreeBSD Binary Emulation Compatibility Code Local Overflow
Local Access Required Denial of Service, Input Manipulation
Loss of Integrity, Loss of Availability

- 漏洞描述

A local overflow exists in NetBSD. The emulation code for FreeBSD binaries fails to sufficiently check bounds, resulting in an integer overflow. With a specially crafted request, an attacker can change the flow of execution, resulting in a loss of integrity and/or availability.

- 时间线

2005-10-31 Unknow
Unknow Unknow

- 解决方案

Upgrade to version 2.0.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者

 

 

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