Important: rsync security update
Summary
ALSA-2022:2201: Important: rsync security update. Affects rsync versions < 3.1.3-14.el8. Fixed in 3.1.3-14.el8. How to fix ↓
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Background
The rsync utility is a powerful tool used for file synchronization and mirroring. It allows users to copy and synchronize files locally or across a network, sending only the differences in files instead of the entire files. This makes synchronization with rsync fast and efficient. However, a vulnerability has been discovered in rsync that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in rsync is related to the zlib library used for compression. When compressing certain inputs, a flaw in zlib can be exploited. This vulnerability, identified as CVE-2018-25032, affects the compression functionality of rsync. Attackers could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition.
How To Fix
Minimum fixed version
3.1.3-14.el8
This is the first release that contains the fix.
sudo dnf update rsyncTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
In conclusion, it is important to update the rsync package to address the zlib vulnerability. By updating to version 3.1.3-14.el8 or later, the risk of exploitation can be mitigated. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for rsync →
FAQ
rsync is a utility used for file synchronization and mirroring. It allows users to efficiently copy and synchronize files locally or across a network.
rsync achieves fast synchronization by sending only the differences in files over the network, rather than sending the entire files.
This vulnerability in rsync's zlib compression functionality could potentially allow attackers to execute arbitrary code or cause a denial-of-service condition.
Yes, updating the rsync package to version 3.1.3-14.el8 or later will fix this vulnerability.
More information about this vulnerability can be found in the CVE page for CVE-2018-25032.
References
Related vulnerabilities
Recent vulnerabilities recorded for rsync.
