Security readout for executives and security teams
Plain-English summary
This flaw can crash Samba’s print spooler service in certain configurations. It affects Samba 4.0.0 and later when the RPC spoolss service runs as an external daemon. The impact is denial of service, not documented data theft or code execution in the provided sources.
Executive priority
Treat as a service-availability risk. Prioritize remediation where Samba print services support business operations or are reachable by broad internal networks. It is less urgent than confirmed remote code execution, based on provided evidence.
Technical view
CVE-2018-1050 is a CWE-476 Samba spoolss RPC input sanitization issue. Malformed or unexpected parameters to some spoolss RPC calls may crash the print spooler service when spoolss is configured as an external daemon.
Likely exposure
Exposure is limited to Samba deployments from version 4.0.0 onward that use the RPC spoolss service as an external daemon, especially systems providing print services over SMB/RPC.
Exploitation context
The bundle does not cite active exploitation, and KEV status is false. Public references describe a denial-of-service condition against the print spooler service, but no exploit maturity or weaponized activity is evidenced here.
Researcher notes
Key uncertainty is fixed-version detail; the bundle lists vendor advisories but does not include patch text. Validate configuration-specific exposure before counting every Samba host as vulnerable in practice.
Mitigation direction
- Review Samba and OS vendor advisories for corrected packages.
- Update affected Samba packages through supported vendor channels.
- Assess whether external spoolss daemon mode is required.
- Disable or reconfigure unneeded Samba print services per vendor guidance.
- Restrict SMB/RPC access to trusted networks where feasible.
Validation and detection
- Inventory Samba hosts and package versions.
- Identify systems running spoolss as an external daemon.
- Confirm vendor security updates are installed.
- Review logs for print spooler crashes or restarts.
- Verify SMB/RPC exposure is not unnecessarily public.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-1050 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- USN-3595-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- RHSA-2018:2613CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2018:2612CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2018:1883CVE reference · vendor-advisory, x_refsource_REDHAT
- DSA-4135CVE reference · vendor-advisory, x_refsource_DEBIAN
- USN-3595-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- RHSA-2018:1860CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2018:3056CVE reference · vendor-advisory, x_refsource_REDHAT
- GLSA-201805-07CVE reference · vendor-advisory, x_refsource_GENTOO
- [debian-lts-announce] 20180327 [SECURITY] [DLA 1320-1] samba security updateCVE reference · mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20190409 [SECURITY] [DLA 1754-1] samba security updateCVE reference · mailing-list, x_refsource_MLIST
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0CVE reference · x_refsource_CONFIRM
- https://www.samba.org/samba/security/CVE-2018-1050.htmlCVE reference · x_refsource_CONFIRM
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03834en_usCVE reference · x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1538771CVE reference · x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20180313-0001/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.