ncpfs 2.2.6 and earlier attempts to use (1) ncpmount to append to the /etc/mtab file and…
Priority LOW 16CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
ncpfs 2.2.6 and earlier attempts to use (1) ncpmount to append to the /etc/mtab file and (2) ncpumount to append to the /etc/mtab.tmp file without first checking whether resource limits would interfere, which allows local users to trigger corruption of the /etc/mtab file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
Why it matters now
EPSS 0.00374 31st 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
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ncpfs:ncpfs:*:*:*:*:*:*:*:* | up to 2.2.6 | Vulnerable | Ncpfs |
| cpe:2.3:a:ncpfs:ncpfs:2.2.1:*:*:*:*:*:*:* | 2.2.1 | Vulnerable | Ncpfs |
| cpe:2.3:a:ncpfs:ncpfs:2.2.2:*:*:*:*:*:*:* | 2.2.2 | Vulnerable | Ncpfs |
| cpe:2.3:a:ncpfs:ncpfs:2.2.3:*:*:*:*:*:*:* | 2.2.3 | Vulnerable | Ncpfs |
| cpe:2.3:a:ncpfs:ncpfs:2.2.4:*:*:*:*:*:*:* | 2.2.4 | Vulnerable | Ncpfs |
| cpe:2.3:a:ncpfs:ncpfs:2.2.5:*:*:*:*:*:*:* | 2.2.5 | Vulnerable | Ncpfs |
- cpe:2.3:a:ncpfs:ncpfs:*:*:*:*:*:*:*:* Versions up to 2.2.6 Vulnerable ·Ncpfs
- cpe:2.3:a:ncpfs:ncpfs:2.2.1:*:*:*:*:*:*:* Versions 2.2.1 Vulnerable ·Ncpfs
- cpe:2.3:a:ncpfs:ncpfs:2.2.2:*:*:*:*:*:*:* Versions 2.2.2 Vulnerable ·Ncpfs
- cpe:2.3:a:ncpfs:ncpfs:2.2.3:*:*:*:*:*:*:* Versions 2.2.3 Vulnerable ·Ncpfs
- cpe:2.3:a:ncpfs:ncpfs:2.2.4:*:*:*:*:*:*:* Versions 2.2.4 Vulnerable ·Ncpfs
- cpe:2.3:a:ncpfs:ncpfs:2.2.5:*:*:*:*:*:*:* Versions 2.2.5 Vulnerable ·Ncpfs
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1679
- 2026-10-03 Alias added: GHSA-rv69-mh9p-xcg6
References
Advisory 16
- [oss-security] 20110314 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110303 Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110322 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110322 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110305 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110307 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110401 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110304 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110314 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110331 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110304 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110314 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110303 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110305 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110331 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
- [oss-security] 20110315 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
More Ncpfs vulnerabilities
- TI-2005-00014 Buffer overflow in ncplogin in ncpfs before 2.2.6 allows remote malicious NetWare servers… CVSS 2.0HIGH 7.5
- TI-2005-00013 nwclient.c in ncpfs before 2.2.6 does not drop root privileges before executing utilities… CVSS 2.0HIGH 7.2
- TI-2004-00976 Buffer overflow in (1) ncplogin and (2) ncpmap in nwclient.c for ncpfs 2.2.4, and… CVSS 2.0HIGH 7.2
- TI-2010-00752 ncpfs 2.2.6 allows local users to cause a denial of service, obtain sensitive… CVSS 2.0MEDIUM 4.4
- TI-2011-01465 ncpmount in ncpfs 2.2.6 and earlier does not remove the /etc/mtab~ lock file after a… CVSS 2.0MEDIUM 4.4
- TI-2010-00755 The (1) ncpmount, (2) ncpumount, and (3) ncplogin programs in ncpfs 2.2.6 do not properly… CVSS 2.0LOW 2.1
Sources
- CVE-2011-1679 · CVE Program
- CVE-2011-1679 · NVD
- FIRST EPSS
- GHSA-rv69-mh9p-xcg6 · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1679 · Red Hat security data · CC BY 4.0
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