Amazon Linux 2 Security Advisory: ALAS2MOCK-2025-001
Advisory Released Date: 2025-09-04
Advisory Updated Date: 2025-09-04
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)
Affected Packages:
mock
Note:
This advisory is applicable to Amazon Linux 2 - Mock Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update mock or yum update --advisory ALAS2MOCK-2025-001 to update your system.
noarch:
mock-1.4.19-1.amzn2.0.2.noarch
mock-scm-1.4.19-1.amzn2.0.2.noarch
mock-lvm-1.4.19-1.amzn2.0.2.noarch
src:
mock-1.4.19-1.amzn2.0.2.src