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CVE-2024-43168— Unbound: heap-buffer-overflow in unbound

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 6
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.

NLnet Labs Unbound是荷兰NLnet Labs团队的一款开源DNS服务器。 NLnet Labs Unbound 存在安全漏洞，该漏洞源于文件util/config_file.c的函数cfg_mark_ports中存在堆缓冲区溢出漏洞。

CVSS 4.8 · Medium EPSS 0.31% · P22
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I. Basic Information for CVE-2024-43168

Vulnerability Information
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Vulnerability Title
Unbound: heap-buffer-overflow in unbound
Source: CVE Program / CVE List V5
Vulnerability Description
DISPUTE NOTE: this issue does not pose a security risk as it (according to analysis by the original software developer, NLnet Labs) falls within the expected functionality and security controls of the application. Red Hat has made a claim that there is a security risk within Red Hat products. NLnet Labs has no further information about the claim, and suggests that affected Red Hat customers refer to available Red Hat documentation or support channels. ORIGINAL DESCRIPTION: A heap-buffer-overflow flaw was found in the cfg_mark_ports function within Unbound's config_file.c, which can lead to memory corruption. This issue could allow an attacker with local access to provide specially crafted input, potentially causing the application to crash or allowing arbitrary code execution. This could result in a denial of service or unauthorized actions on the system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
NLnet Labs Unbound 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NLnet Labs Unbound是荷兰NLnet Labs团队的一款开源DNS服务器。 NLnet Labs Unbound 存在安全漏洞，该漏洞源于文件util/config_file.c的函数cfg_mark_ports中存在堆缓冲区溢出漏洞。
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
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4
Red Hat Red Hat OpenStack Platform 16.2 - cpe:/a:redhat:openstack:16.2
Red Hat Red Hat OpenStack Platform 17.1 - cpe:/a:redhat:openstack:17.1
Red Hat Red Hat OpenStack Platform 18.0 - cpe:/a:redhat:openstack:18.0
Red Hat Red Hat OpenStack Platform 18.0 - cpe:/a:redhat:openstack:18.0
Red Hat Red Hat OpenStack Platform 18.0 - cpe:/a:redhat:openstack:18.0

II. Public POCs for CVE-2024-43168

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III. Intelligence Information for CVE-2024-43168

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Vendor Advisories for CVE-2024-43168 (1)

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 6
Same vendor: Red Hat
Same weakness: CWE-122

V. Comments for CVE-2024-43168

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