Security Update for lsyncd
Summary
DSA-3130-1: lsyncd - security update. Affects lsyncd versions < 2.0.7-3+deb7u1. Fixed in 2.0.7-3+deb7u1. How to fix ↓
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Background
lsyncd is a daemon used to synchronize local directories using rsync. It provides an efficient way to keep files and directories in sync across multiple machines. This vulnerability affects lsyncd versions prior to 2.0.7-3+deb7u1 for Debian 7 (wheezy), and versions prior to 2.1.5-2 for Debian 8 (jessie) and Debian unstable (sid).
Vulnerability Detail
The vulnerability in lsyncd is due to insufficient sanitization of filenames, which could allow an attacker to execute arbitrary commands. This can be exploited by crafting a malicious filename that includes shell commands, which are executed when lsyncd processes the file. The impact of this vulnerability could be remote code execution or unauthorized access to sensitive information.
How To Fix
Minimum fixed version
2.0.7-3+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade lsyncdTip — 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 security update as soon as possible to mitigate the risk.
Conclusion
The lsyncd vulnerability allows for the execution of arbitrary commands, posing a risk of remote code execution or unauthorized access to sensitive information. To mitigate this risk, it is essential to upgrade lsyncd to the recommended versions. For further assistance or support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for lsyncd →
FAQ
lsyncd is a daemon used to synchronize local directories using rsync. It provides real-time syncing of files and directories across multiple machines.
The vulnerability allows an attacker to execute arbitrary commands, potentially leading to remote code execution or unauthorized access to sensitive information.
Versions prior to 2.0.7-3+deb7u1 for Debian 7 (wheezy), and versions prior to 2.1.5-2 for Debian 8 (jessie) and Debian unstable (sid) are affected.
To fix this vulnerability, you should upgrade lsyncd to the recommended versions mentioned in the 'how_to_fix' section.
No, there is no known workaround for this vulnerability. It is crucial to apply the security update as soon as possible.
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