CVE-2021-36386
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Fetchmail是一个下载邮件的应用程序。 Fetchmail 6.4.20之前的版本存在安全漏洞。该漏洞源于report.c中的report_vbuild有时会忽略va_list参数的初始化。这可能会导致邮件服务器拒绝服务，或者其他未明确的影响。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-36386
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fetchmail 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fetchmail是一个下载邮件的应用程序。 Fetchmail 6.4.20之前的版本存在安全漏洞。该漏洞源于report.c中的report_vbuild有时会忽略va_list参数的初始化。这可能会导致邮件服务器拒绝服务，或者其他未明确的影响。
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 | - |
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II. Public POCs for CVE-2021-36386
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-36386 (1)
Mailing List Discussions for CVE-2021-36386 (4)
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http://www.openwall.com/lists/oss-security/2021/07/28/5 x_refsource_MISC
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/ vendor-advisory x_refsource_FEDORA
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Other References for CVE-2021-36386 (1)
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https://www.fetchmail.info/security.html x_refsource_MISC
Same Patch Batch · n/a · 2021-07-29 · 18 CVEs total
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| CVE-2020-21808 | Vinades NukeViet SQL注入漏洞 | |
| CVE-2020-21809 | Vinades NukeViet SQL注入漏洞 | |
| CVE-2020-18157 | Metinfo 跨站请求伪造漏洞 | |
| CVE-2020-18158 | HuCart 跨站脚本漏洞 | |
| CVE-2021-20114 | Tecnick.com TCExam 信息泄露漏洞 | |
| CVE-2021-36621 | SourceCodester Online Covid Vaccination Scheduler System SQL注入漏洞 | |
| CVE-2021-36624 | SourceCodester Phone Shop Sales Managements System SQL注入漏洞 | |
| CVE-2021-37144 | CSZ CMS 安全漏洞 | |
| CVE-2021-20111 | Tecnick.com TCExam 跨站脚本漏洞 | |
| CVE-2021-20112 | Tecnick.com TCExam 跨站脚本漏洞 | |
| CVE-2021-20113 | Tecnick.com TCExam 信息泄露漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-36386
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