Samba - Denial of Service Vulnerability
Summary
DLA-1320-1: samba - security update. Affects samba versions < 2:3.6.6-6+deb7u16. Fixed in 2:3.6.6-6+deb7u16. How to fix ↓
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Background
Samba is an open-source SMB/CIFS file, print, and login server for Unix systems. It provides file and printer sharing services to Windows clients and allows Unix users to access shared resources on Windows networks. Samba is widely used in enterprise environments and is an essential component for seamless integration between Unix and Windows systems. However, a vulnerability has been discovered in Samba that could lead to a denial of service (DoS) attack.
Vulnerability Detail
The vulnerability, identified as CVE-2018-1050, affects Samba when the RPC spoolss service is configured to be run as an external daemon. An attacker can exploit this vulnerability to launch a DoS attack, causing the Samba server to become unresponsive and denying service to legitimate users. The issue was discovered by Jeremy Allison, and a patch has been provided to address the vulnerability.
How To Fix
Minimum fixed version
2:3.6.6-6+deb7u16
This is the first release that contains the fix.
sudo apt-get install --only-upgrade sambaTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
Samba is prone to a denial of service vulnerability when the RPC spoolss service is configured as an external daemon. It is crucial to upgrade your Samba packages to the patched version to mitigate the risk of a DoS attack. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for samba →
FAQ
Samba is an open-source implementation of the SMB/CIFS networking protocol. It allows Unix systems to provide file and printer sharing services to Windows clients.
This vulnerability can be exploited by an attacker to launch a denial of service attack, causing the Samba server to become unresponsive and denying service to legitimate users.
The vulnerability was discovered by Jeremy Allison.
No, upgrading to the patched version of Samba is the recommended solution.
You can find more information about Debian LTS security advisories, including how to apply updates and frequently asked questions, in the Debian LTS documentation.
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