CVE-2011-1679: Input Validation
First published: Sun Apr 10 2011(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ncpfs | <=2.2.6 | |
| ncpfs | =2.2.1 | |
| ncpfs | =2.2.2 | |
| ncpfs | =2.2.3 | |
| ncpfs | =2.2.4 | |
| ncpfs | =2.2.5 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=688980
- http://openwall.com/lists/oss-security/2011/03/05/7
- http://openwall.com/lists/oss-security/2011/04/01/2
- http://openwall.com/lists/oss-security/2011/03/31/3
- http://openwall.com/lists/oss-security/2011/03/22/6
- http://openwall.com/lists/oss-security/2011/03/04/9
- http://openwall.com/lists/oss-security/2011/03/15/6
- http://openwall.com/lists/oss-security/2011/03/04/12
- http://openwall.com/lists/oss-security/2011/03/22/4
- http://openwall.com/lists/oss-security/2011/03/14/5
- http://openwall.com/lists/oss-security/2011/03/14/7
- http://openwall.com/lists/oss-security/2011/03/04/11
- http://openwall.com/lists/oss-security/2011/03/31/4
- http://openwall.com/lists/oss-security/2011/03/04/10
- http://openwall.com/lists/oss-security/2011/03/05/3
- http://openwall.com/lists/oss-security/2011/03/14/16
- http://openwall.com/lists/oss-security/2011/03/07/9
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66701
Frequently Asked Questions
What is the severity of CVE-2011-1679?
CVE-2011-1679 has a medium severity due to potential local user risk of corruption of the /etc/mtab file.
How do I fix CVE-2011-1679?
To fix CVE-2011-1679, upgrade to ncpfs version 2.2.7 or later, where this vulnerability is addressed.
Who is affected by CVE-2011-1679?
CVE-2011-1679 affects users running ncpfs versions 2.2.6 and earlier.
What is the impact of CVE-2011-1679?
The impact of CVE-2011-1679 includes possible corruption of the /etc/mtab file, which can affect system stability.
Is CVE-2011-1679 a remote vulnerability?
No, CVE-2011-1679 is a local vulnerability that requires local user access to exploit.
- agent/references
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- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/author
- agent/weakness
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-historical
- vendor/ncpfs
- canonical/ncpfs
- version/ncpfs/2.2.6
- version/ncpfs/2.2.1
- version/ncpfs/2.2.2
- version/ncpfs/2.2.3
- version/ncpfs/2.2.4
- version/ncpfs/2.2.5