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CVE-2023-5978— Incorrect libcap_net limitation list manipulation

Quick assessment

Affected
FreeBSD FreeBSD
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.

FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD 13-RELEASE版本至13-RELEASE-p5之前版本存在安全漏洞，该漏洞源于允许应用程序解析以前受限制的域名。

AI Predicted 7.8 Difficulty: Easy EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1556 · Modify Authentication Process
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I. Basic Information for CVE-2023-5978

Vulnerability Information
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Vulnerability Title
Incorrect libcap_net limitation list manipulation
Source: CVE Program / CVE List V5
Vulnerability Description
In versions of FreeBSD 13-RELEASE before 13-RELEASE-p5, under certain circumstances the cap_net libcasper(3) service incorrectly validates that updated constraints are strictly subsets of the active constraints.  When only a list of resolvable domain names was specified without setting any other limitations, an application could submit a new list of domains including include entries not previously listed.  This could permit the application to resolve domain names that were previously restricted.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
FreeBSD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD 13-RELEASE版本至13-RELEASE-p5之前版本存在安全漏洞，该漏洞源于允许应用程序解析以前受限制的域名。
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
FreeBSD FreeBSD 13.2-RELEASE ~ p5 -

II. Public POCs for CVE-2023-5978

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III. Intelligence Information for CVE-2023-5978

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Vendor Advisories for CVE-2023-5978 (1)

IV. Related Vulnerabilities

Same product: FreeBSD
Same vendor: FreeBSD
Same weakness: CWE-269

V. Comments for CVE-2023-5978

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