CVE-2002-0820
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I. Basic Information for CVE-2002-0820
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
FreeBSD kernel漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD kernel 4.6及之前版本在文件标识符0,1,2引用procfs或者linprocfs时，将这些描述符分配给/dev/null后就关闭文件这些描述符。本地用户可以利用该漏洞重用setuid或者setgid程序中的文件描述符来修改关键数据并获取特权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2002-0820
| # | POC Description | Source Link | Shenlong Link |
|---|
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- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.ascvendor-advisoryx_refsource_FREEBSD
- https://nvd.nist.gov/vuln/detail/CVE-2002-0820
Same Patch Batch · n/a · 2002-08-02 · 4 CVEs total
| CVE-2002-0819 | rtswrapper调用artsd格式化字符串漏洞 | |
| CVE-2002-0821 | Ethereal缓冲区溢出漏洞 | |
| CVE-2002-0822 | Ethereal服务拒绝和执行任意代码漏洞 |
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V. Comments for CVE-2002-0820
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