CVE-2011-1679

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.

Published: 2011-04-10 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-1679 is rated Low Risk (20.6/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-1679

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.04% 0.08% +0.03%
2 2023-03-07 1.55% 0.04% -1.50%
3 2022-02-04 — 1.55% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1679

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.3 2.0 LOW
AV:L/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 4.9 [email protected]

Weakness enumeration for CVE-2011-1679

OS Trackers for CVE-2011-1679

vendor priority summary link
ubuntu low CVE-2011-1679 low priority: Ubuntu including 1 source packages (ncpfs), 19 status rows across 19 suites (dapper, hardy, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 11, DNE 7, needs-triage 1. https://ubuntu.com/security/CVE-2011-1679

Affected software / configurations for CVE-2011-1679

Vendor Product Version Raw CPE
ncpfs ncpfs <= 2.2.6 cpe:2.3:a:ncpfs:ncpfs:*:*:*:*:*:*:*:*
ncpfs ncpfs 2.2.1 cpe:2.3:a:ncpfs:ncpfs:2.2.1:*:*:*:*:*:*:*
ncpfs ncpfs 2.2.2 cpe:2.3:a:ncpfs:ncpfs:2.2.2:*:*:*:*:*:*:*
ncpfs ncpfs 2.2.3 cpe:2.3:a:ncpfs:ncpfs:2.2.3:*:*:*:*:*:*:*
ncpfs ncpfs 2.2.4 cpe:2.3:a:ncpfs:ncpfs:2.2.4:*:*:*:*:*:*:*
ncpfs ncpfs 2.2.5 cpe:2.3:a:ncpfs:ncpfs:2.2.5:*:*:*:*:*:*:*

References for CVE-2011-1679

URL Tags
http://openwall.com/lists/oss-security/2011/03/04/10 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/04/11 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/04/12 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/04/9 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/05/3 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/05/7 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/07/9 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/14/16 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/14/5 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/14/7 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/15/6 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/22/4 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/22/6 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/31/3 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/03/31/4 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2011/04/01/2 Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=688980 Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/66701
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