Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2020-27840

Quick assessment

Affected
n/a samba
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.

Samba是Samba团队的一套可使UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS网络协议做连结的自由软件。该软件支持共享打印机、互相传输资料文件等。 Samba 存在安全漏洞，攻击者可利用该漏洞通过DN Strings触发内存损坏，从而触发拒绝服务，并可能运行代码。

AI Predicted 5.5 Difficulty: Easy EPSS 3.83% · P90

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-27840

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Samba 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Samba是Samba团队的一套可使UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS网络协议做连结的自由软件。该软件支持共享打印机、互相传输资料文件等。 Samba 存在安全漏洞，攻击者可利用该漏洞通过DN Strings触发内存损坏，从而触发拒绝服务，并可能运行代码。
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
- samba samba 4.14.1, samba 4.13.6, samba 4.12.13 -

II. Public POCs for CVE-2020-27840

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-27840

请登录查看更多情报信息。

Vendor Advisories for CVE-2020-27840 (4)

Mailing List Discussions for CVE-2020-27840 (4)

Other References for CVE-2020-27840 (1)

Same Patch Batch · n/a · 2021-05-12 · 22 CVEs total

CVE-2020-23790 Golo Laravel theme 代码问题漏洞
CVE-2020-35198 Wind River VxWorks 输入验证错误漏洞
CVE-2020-13873 Codoforum SQL注入漏洞
CVE-2020-28393 多款 Siemens 设备安全漏洞
CVE-2021-31341 Siemens Mendix 安全漏洞
CVE-2021-20277 Samba 缓冲区错误漏洞
CVE-2021-3457 Foreman 安全漏洞
CVE-2021-20202 keycloak 安全漏洞
CVE-2021-32608 Smartstore SmartStoreNET 安全漏洞
CVE-2021-32607 Smartstore SmartStoreNET 安全漏洞
CVE-2021-32611 Antisip eXosip 代码问题漏洞
CVE-2021-22155 Blackberry Workspaces Server 安全漏洞
CVE-2021-32572 Speco Technologies Speco Web Viewer 路径遍历漏洞
CVE-2021-30211 Knowage 跨站脚本漏洞
CVE-2021-30212 Knowage 跨站脚本漏洞
CVE-2021-30214 Knowage 注入漏洞
CVE-2021-30213 Knowage 跨站脚本漏洞
CVE-2020-19274 DhCms 跨站脚本漏洞
CVE-2020-19275 DhCms 输入验证错误漏洞
CVE-2020-18165 LAOBANCMS 跨站脚本漏洞

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: samba
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2020-27840

No comments yet

Leave a comment