Samba has released version 4.23.12, a maintenance-focused update aimed at addressing plumbing issues following a series of significant security advisories earlier in the year. The update includes improvements to the internal DNS server, threading fixes, and adjustments for file server behavior, but does not introduce any new CVEs. The release comes after previous patches that addressed critical vulnerabilities, including a remote code execution flaw and LDAP access issues. Overall, version 4.23.12 is designed to enhance stability and performance for active installations without introducing new risks

Samba 4.23.12 Drops: Maintenance Release Lands After Heavy Security Wave

Samba has released 4.23.12 as the twelfth point update for its stable branch, as a strictly maintenance-focused build. The patch targets plumbing issues including DNS UDP-to-TCP switching, pthreadpool race conditions, and NDR encoding bugs, following a heavy wave of May and July security advisories across multiple branches. 

Samba 4.23.12 Drops: Maintenance Release Lands After Heavy Security Wave @ Linux Compatible