CVE-2006-0635
CVSS4.6
发布时间 :2006-02-10 06:02:00
修订时间 :2008-09-05 16:59:48
NMCO    

[原文]Tiny C Compiler (TCC) 0.9.23 (aka TinyCC) evaluates the "i>sizeof(int)" expression to false when i equals -1, which might introduce integer overflow vulnerabilities into applications that could be exploited by context-dependent attackers.


[CNNVD]Tiny C Compiler "i>sizeof(int)" 整数溢出漏洞(CNNVD-200602-142)

        Tiny C Compiler (TCC) 0.9.23(即TinyCC)在i等于-1时会将"i>sizeof(int)"表达式的值计算为false,这可能会使程序中出现整数溢出漏洞,并被不依靠上下文的攻击者利用。

- CVSS (基础分值)

CVSS分值: 4.6 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
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-2006-0635
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-0635
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200602-142
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/archive/1/archive/1/424257/100/0/threaded
(UNKNOWN)  BUGTRAQ  20060207 Re: [xfocus-SD-060206]BCB compiler incorrect deal sizeof operator vulnerability
http://www.osvdb.org/22956
(UNKNOWN)  OSVDB  22956

- 漏洞信息

Tiny C Compiler "i>sizeof(int)" 整数溢出漏洞
中危 缓冲区溢出
2006-02-10 00:00:00 2006-04-28 00:00:00
本地  
        Tiny C Compiler (TCC) 0.9.23(即TinyCC)在i等于-1时会将"i>sizeof(int)"表达式的值计算为false,这可能会使程序中出现整数溢出漏洞,并被不依靠上下文的攻击者利用。

- 公告与补丁

        

- 漏洞信息

22956
Tiny C Compiler sizeof Calculation Weakness
Local Access Required Other
Loss of Integrity
Exploit Unknown

- 漏洞描述

Tiny C Compiler contains a flaw that may have security implications on programs compiled with it. The compiler fails to return unsigned values for the sizeof() macro, resulting in a potential integer overflows in the objects it compiles.

- 时间线

2006-02-06 Unknow
Unknow Unknow

- 解决方案

Currently, there are no known workarounds or upgrades to correct this issue. However, Fabrice Bellard has released a patch (changesets 417 and 418) to address this vulnerability.

- 相关参考

- 漏洞作者

 

 

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