Important: python-jinja2 security update
Summary
RLSA-2019:1152: Important: python-jinja2 security update. Affects python-jinja2 versions < 0:2.10.1-2.el8_0. Fixed in 0:2.10.1-2.el8_0. How to fix ↓
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Background
The python-jinja2 package contains Jinja2, a template engine written in pure Python. Jinja2 provides a Django inspired non-XML syntax but supports inline expressions and an optional sandboxed environment.
Vulnerability Detail
The vulnerability (CVE-2019-10906) in python-jinja2 is related to the 'str.format_map' function, which allows for a sandbox escape. This vulnerability could potentially be exploited to execute arbitrary code or perform unauthorized actions within the sandboxed environment. The CVSS score for this vulnerability is 9.0, indicating a high severity.
How To Fix
Minimum fixed version
0:2.10.1-2.el8_0
This is the first release that contains the fix.
sudo dnf update python-jinja2Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
In conclusion, the python-jinja2 package is affected by a high-severity vulnerability (CVE-2019-10906) that allows for a sandbox escape. It is crucial to update the package to the fixed version to mitigate the risk of arbitrary code execution or unauthorized actions within the sandboxed environment. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Python-jinja2 is a template engine written in pure Python, providing a non-XML syntax inspired by Django.
This vulnerability allows for a sandbox escape, potentially leading to the execution of arbitrary code or unauthorized actions within the sandboxed environment.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and it will provide real-time alerts for open-source vulnerabilities.
No specific workaround has been provided for this vulnerability. It is recommended to update the python-jinja2 package to the fixed version.
You can find more information about this vulnerability, including the impact, CVSS score, and related details, on the CVE page: CVE-2019-10906.
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