Bug 2241885 (CVE-2023-42670)
| Summary: | CVE-2023-42670 samba: AD DC Busy RPC multiple listener DoS | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | TEJ RATHI <trathi> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | nobody, pfilipen, rhs-smb, security-response-team, stefano.biagiotti |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | samba 4.19.1, samba 4.18.8, samba 4.17.12 | Doc Type: | If docs needed, set a value |
| Doc Text: |
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 leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when using tools like Active Directory Users. This flaw allows an attacker to disrupt AD DC services.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2243232 | ||
| Bug Blocks: | 2228383 | ||
|
Description
TEJ RATHI
2023-10-03 07:34:40 UTC
This CVE is now Public: https://www.samba.org/samba/security/CVE-2023-42670.html Created samba tracking bugs for this issue: Affects: fedora-all [bug 2243232] |