All vulnerabilities

Servers and applications

CVE-2023-42670

A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba's RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue…

Severity
Medium 6.5
Published
3 Nov 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.17.12, 4.18.8, 4.19.1
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • Every version before 4.17.12
  • From 4.18.0 before 4.18.8
  • From 4.19.0 before 4.19.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-42670
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-42670