The Korn shell (aka mksh) before R33d on MirOS (aka MirBSD) does not flush the tty's I/O…
Priority LOW 32Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The Korn shell (aka mksh) before R33d on MirOS (aka MirBSD) does not flush the tty's I/O when invoking mksh in a new terminal, which allows local users to gain privileges by opening a virtual terminal and entering command sequences, which might later be executed in opportunistic circumstances by a different user who launches mksh and specifies that terminal with the -T option.
Why it matters now
EPSS 0.00332 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1845
- 2026-10-03 Alias added: GHSA-v8fp-2p2f-6r3c
References
More Mirbsd Miros vulnerabilities
- TI-2009-00656 The pf_test_rule function in OpenBSD Packet Filter (PF), as used in OpenBSD 4.2 through… CVSS 2.0HIGH 7.8
Sources
- CVE-2008-1845 · CVE Program
- CVE-2008-1845 · NVD
- FIRST EPSS
- GHSA-v8fp-2p2f-6r3c · GitHub Advisory Database · CC BY 4.0
- CVE-2008-1845 · Red Hat security data · CC BY 4.0
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