Security readout for executives and security teams
Plain-English summary
CVE-2006-7254 is a local denial-of-service issue in glibc's nscd daemon before version 2.5. A local user could cause nscd to keep client sockets open when it cannot handle them, potentially exhausting daemon resources and disrupting cached name-service lookups.
Executive priority
Treat as low priority unless legacy Linux systems with untrusted local users still run nscd. The risk is service disruption, not known remote compromise. Remediate through normal legacy-system hygiene and patch verification.
Technical view
The issue is in GNU C Library nscd before 2.5. The daemon does not close incoming client sockets that cannot be handled, enabling local users to deny service to nscd through resource exhaustion. The source bundle provides no CVSS, CWE, vendor package matrix, or active exploitation evidence.
Likely exposure
Likely exposure is limited to very old systems running glibc before 2.5 with nscd enabled and local user access. Modern supported Linux distributions are unlikely to ship an unpatched baseline, but vendor backports should be verified.
Exploitation context
The bundle describes local user exploitation only. CISA KEV status is false, and no cited source in the bundle reports active exploitation. The practical impact is disruption of nscd, not remote system compromise.
Researcher notes
Evidence is sparse: the bundle names glibc before 2.5 and links Sourceware bug 2498, but provides no CVSS, CWE, exploit status, or detailed affected package list. Avoid broader product claims without distribution-specific advisories.
Mitigation direction
- Inventory systems running nscd and glibc versions older than 2.5.
- Upgrade glibc through supported vendor channels where affected.
- Verify whether distribution packages backported the nscd fix.
- Limit untrusted local shell access on affected legacy systems.
- Monitor nscd health and restart failures as an operational control.
Validation and detection
- Confirm whether nscd is installed, enabled, or actively used.
- Check the installed glibc package version and vendor patch status.
- Review local account exposure on systems with affected nscd deployments.
- Correlate findings with Sourceware bug 2498 and vendor advisories.
- Verify that upgraded systems no longer match the affected version condition.
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
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CVE-2006-7254 mapping review
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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
- https://sourceware.org/bugzilla/show_bug.cgi?id=2498CVE reference · x_refsource_MISC
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.