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CVE-2018-7685— libzypp does not reevaluate malicious rpms once downloaded

Quick assessment

Affected
SUSE libzypp
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.

libzypp（又名ZYPP）是美国Novell公司资助的一套开源的可管理引擎、驱动（例如：Linux应用程序YaST、Zypper）的工具。 libzypp 17.5.0之前版本中存在安全漏洞，该漏洞源于程序只会在下载过程中弹出恶意警告。攻击者可借助解耦下载和安装步骤利用该漏洞将受损的RPM存储在缓存中，并且使其进行安装。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.30% · P22
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I. Basic Information for CVE-2018-7685

Vulnerability Information
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Vulnerability Title
libzypp does not reevaluate malicious rpms once downloaded
Source: CVE Program / CVE List V5
Vulnerability Description
The decoupled download and installation steps in libzypp before 17.5.0 could lead to a corrupted RPM being left in the cache, where a later call would not display the corrupted RPM warning and allow installation, a problem caused by malicious warnings only displayed during download.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当实现的标准安全检查
Source: CVE Program / CVE List V5
Vulnerability Title
libzypp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libzypp（又名ZYPP）是美国Novell公司资助的一套开源的可管理引擎、驱动（例如：Linux应用程序YaST、Zypper）的工具。 libzypp 17.5.0之前版本中存在安全漏洞，该漏洞源于程序只会在下载过程中弹出恶意警告。攻击者可借助解耦下载和安装步骤利用该漏洞将受损的RPM存储在缓存中，并且使其进行安装。
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
SUSE libzypp unspecified ~ 17.5.0 -

II. Public POCs for CVE-2018-7685

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III. Intelligence Information for CVE-2018-7685

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Vendor Advisories for CVE-2018-7685 (2)

Mailing List Discussions for CVE-2018-7685 (1)

IV. Related Vulnerabilities

Same product: libzypp
Same vendor: SUSE
Same weakness: CWE-358