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CVE-2018-16852

Quick assessment

Affected
[UNKNOWN] 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团队开发的一套可使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 4.9.0版本至4.9.3之前版本中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务（空指针逆向引用）。

AI Predicted 5.3 Difficulty: Trivial EPSS 2.23% · P83
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I. Basic Information for CVE-2018-16852

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property is set, the server will follow a NULL pointer and terminate. There is no further vulnerability associated with this issue, merely a denial of service.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Samba 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Samba是Samba团队开发的一套可使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 4.9.0版本至4.9.3之前版本中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务（空指针逆向引用）。
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
[UNKNOWN] samba 4.9.3 -

II. Public POCs for CVE-2018-16852

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III. Intelligence Information for CVE-2018-16852

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Vendor Advisories for CVE-2018-16852 (4)

Same Patch Batch · [UNKNOWN] · 2018-11-28 · 6 CVEs total

CVE-2018-14629 Samba LDAP服务器安全漏洞
CVE-2018-16841 Samba 安全漏洞
CVE-2018-16851 Samba AD DC LDAP服务器安全漏洞
CVE-2018-16853 Samba 安全漏洞
CVE-2018-16857 Samba 安全漏洞

IV. Related Vulnerabilities

Same product: samba
Same vendor: [UNKNOWN]
Same weakness: CWE-476

V. Comments for CVE-2018-16852

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