Security readout for executives and security teams
A very old flaw in Digital Unix 4.0 lets a bug in the "inc" mail utility, part of the MH mail package, be triggered by oversized input. On systems still running this legacy OS, a local user could potentially corrupt memory and gain elevated access. Practical business impact today is limited to organizations still operating unsupported Tru64/Digital Unix hosts. Exposure is confined to environments still running Digital Unix (Tru64) 4.0 with the MH mail package installed. That OS has been out of vendor support for many years, so mainstream enterprise exposure is negligible, though isolated legacy or archival systems may still exist. Low priority for most organizations. Only relevant if the business still operates Digital Unix/Tru64 4.0 hosts, in which case the broader end-of-life risk far outweighs this specific bug and migration should be the driver. Mitigation focus: Identify any remaining Digital Unix/Tru64 4.0 systems and confirm whether the MH package is installed.; Consult HP/HPE legacy Tru64 advisories and CIAC bulletin J-027 for era-specific patch guidance.; Restrict local shell access on affected hosts to trusted administrators only..
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
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ATT&CK lookup starting points
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CVE-1999-0358 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
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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
Products and packages named in the record
CWE details
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