Vulnerability in texlive-base package - Arbitrary Code Execution
Summary
DLA-847-1: texlive-base - security update. Affects texlive-base versions < 2012.20120611-5+deb7u1. Fixed in 2012.20120611-5+deb7u1. How to fix ↓
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Background
The texlive-base package is a component of the TeX system, which is widely used for typesetting documents. It provides the basic functionality and core components required for compiling TeX documents. The package allows for calling external programs from within the TeX source code, although this capability has been restricted to a small set of programs for security reasons. However, it was discovered that the mpost program, included in the list of allowed programs, allows the specification of other programs to be run, leading to the potential execution of arbitrary code when compiling a TeX document.
Vulnerability Detail
The vulnerability in the texlive-base package allows an attacker to execute arbitrary code by exploiting the mpost program. By specifying malicious programs to be run during the compilation of a TeX document, an attacker can gain unauthorized access to the system and potentially perform malicious actions. This vulnerability poses a significant risk to systems running the affected version of the texlive-base package.
How To Fix
Minimum fixed version
2012.20120611-5+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade texlive-baseTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading the texlive-base package to the patched version.
Conclusion
The vulnerability in the texlive-base package allows for the execution of arbitrary code through the mpost program. To mitigate this risk, it is essential to upgrade the texlive-base package to version 2012.20120611-5+deb7u1 or later. This will ensure that the necessary security patches are applied, preventing the exploitation of this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
texlive-base is a package that provides the core components and functionality for the TeX system, used for typesetting documents.
The vulnerability arises from the mpost program, included in the list of allowed programs within the texlive-base package. This program allows the specification of other programs to be run, enabling the execution of arbitrary code during the compilation of TeX documents.
The vulnerability allows an attacker to execute arbitrary code on systems running the affected version of the texlive-base package. This can lead to unauthorized access, data breaches, and potential system compromise.
To fix this vulnerability, it is recommended to upgrade the texlive-base package to version 2012.20120611-5+deb7u1 or later. This updated version includes the necessary security patches to prevent the execution of arbitrary code through the mpost program.
No, there is no known workaround for this vulnerability. It is crucial to apply the recommended fix by upgrading the texlive-base package to the patched version.
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