Vulnerability Details : 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.
Vulnerability category: Input validation
Exploit prediction scoring system (EPSS) score for CVE-2011-1679
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 8 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-1679
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
3.3
|
LOW | AV:L/AC:M/Au:N/C:P/I:P/A:N |
3.4
|
4.9
|
NIST |
CWE ids for CVE-2011-1679
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The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1679
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http://openwall.com/lists/oss-security/2011/03/04/9
oss-security - Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/05/3
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/04/11
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/04/12
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/31/4
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/15/6
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/22/6
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/31/3
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/14/7
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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https://exchange.xforce.ibmcloud.com/vulnerabilities/66701
ncpfs /etc/mtab file security bypass CVE-2011-1679 Vulnerability Report
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http://openwall.com/lists/oss-security/2011/03/05/7
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/04/10
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/04/01/2
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/14/16
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/14/5
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=688980
688980 – (CVE-2011-1089) CVE-2011-1089 glibc: Suid mount helpers fail to anticipate RLIMIT_FSIZEIssue Tracking
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http://openwall.com/lists/oss-security/2011/03/07/9
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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http://openwall.com/lists/oss-security/2011/03/22/4
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
Products affected by CVE-2011-1679
- cpe:2.3:a:ncpfs:ncpfs:*:*:*:*:*:*:*:*
- cpe:2.3:a:ncpfs:ncpfs:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:ncpfs:ncpfs:2.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:ncpfs:ncpfs:2.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:ncpfs:ncpfs:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:ncpfs:ncpfs:2.2.5:*:*:*:*:*:*:*