The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be included in certain configuration parameters. While the Mock documentation advises treating users added to the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently permit less privileged users to define configuration tags. These tags could then be passed as parameters to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege escalation and the execution of arbitrary code as the root user on the build server.

It is, therefore, affected by a vulnerability as referenced in the ALAS2MOCK2-2025-001 advisory.

    The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege     escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from     the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be     included in certain configuration parameters. While the Mock documentation advises treating users added to     the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently     permit less privileged users to define configuration tags. These tags could then be passed as parameters     to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege     escalation and the execution of arbitrary code as the root user on the build server. (CVE-2023-6395)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of mock installed on the remote host is prior to 1.4.19-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2MOCK-2025-001 advisory.

    The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege     escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from     the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be     included in certain configuration parameters. While the Mock documentation advises treating users added to     the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently     permit less privileged users to define configuration tags. These tags could then be passed as parameters     to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege     escalation and the execution of arbitrary code as the root user on the build server. (CVE-2023-6395)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege     escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from     the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be     included in certain configuration parameters. While the Mock documentation advises treating users added to     the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently     permit less privileged users to define configuration tags. These tags could then be passed as parameters     to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege     escalation and the execution of arbitrary code as the root user on the build server. (CVE-2023-6395)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0916 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-6395:
    The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege     escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from     the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be     included in certain configuration parameters. While the Mock documentation advises treating users added to     the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently     permit less privileged users to define configuration tags. These tags could then be passed as parameters     to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege     escalation and the execution of arbitrary code as the root user on the build server.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 38 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-4bd03c989b advisory.

    Fixing CVE-2023-6395


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 39 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-f69989e7dd advisory.

    Fixing CVE-2023-6395


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
265322	Amazon Linux 2 : python-templated-dictionary, --advisory ALAS2MOCK2-2025-001 (ALASMOCK2-2025-001)	Nessus	Amazon Linux Local Security Checks	critical
261532	Amazon Linux 2 : mock, --advisory ALAS2MOCK-2025-001 (ALASMOCK-2025-001)	Nessus	Amazon Linux Local Security Checks	critical
260937	Linux Distros Unpatched Vulnerability : CVE-2023-6395	Nessus	Misc.	critical
238539	TencentOS Server 4: python-templated-dictionary (TSSA-2024:0916)	Nessus	Tencent Local Security Checks	critical
189873	Fedora 38 : python-templated-dictionary (2024-4bd03c989b)	Nessus	Fedora Local Security Checks	critical
189751	Fedora 39 : python-templated-dictionary (2024-f69989e7dd)	Nessus	Fedora Local Security Checks	critical

Detections

Analytics

CVE-2023-6395

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical