fkie_cve-2011-2495
Vulnerability from fkie_nvd
Published
2012-06-13 10:24
Modified
2025-04-11 00:51
Severity ?
Summary
fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39 | |
linux | linux_kernel | 2.6.39.1 | |
linux | linux_kernel | 2.6.39.2 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "94597E40-EA22-414E-BF5A-A4664E943F09", "versionEndIncluding": "2.6.39.3", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:*:*:*:*:*:*:*", "matchCriteriaId": "EAAF54BC-6282-492F-BA52-8792223320ED", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:*", "matchCriteriaId": "2493C2FB-2BA1-4DB3-BC04-E282C9CD399D", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:*", "matchCriteriaId": "18DBC8AF-18ED-4879-8888-23022E494D14", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:*", "matchCriteriaId": "75EB375B-8ADF-4EAB-A3FB-ED5D35E5E719", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc4:*:*:*:*:*:*", "matchCriteriaId": "D49BB231-622E-4F20-97C8-E6289933912C", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc5:*:*:*:*:*:*", "matchCriteriaId": "2D6859AA-DA7F-4AF9-8443-05962171D6E3", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc6:*:*:*:*:*:*", "matchCriteriaId": "9B79A89D-F048-48C5-B148-4B38A6C3953B", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39:rc7:*:*:*:*:*:*", "matchCriteriaId": "BEBA9217-9105-4BA3-BE1E-FE387FECEF87", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39.1:*:*:*:*:*:*:*", "matchCriteriaId": "1713DDF4-33F1-4716-84D7-FCFECCF9BCCA", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.39.2:*:*:*:*:*:*:*", "matchCriteriaId": "ABCE5879-317D-4A33-B6DA-A9ACF553F8E9", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user\u0027s password." }, { "lang": "es", "value": "fs/proc/base.c del kernel de Linux en versiones anteriores a la 2.6.39.4 no restringe el acceso apropiadamente a los archivos /proc/#####/io, lo que facilita a usuarios locales obtener estad\u00edsticas sobre I/O confidenciales consultando un archivo, como se ha demostrado descubriendo la lengitud de la contrase\u00f1a de otro usuario." } ], "id": "CVE-2011-2495", "lastModified": "2025-04-11T00:51:21.963", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "LOW", "cvssData": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ] }, "published": "2012-06-13T10:24:55.827", "references": [ { "source": "secalert@redhat.com", "url": "http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4" }, { "source": "secalert@redhat.com", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d1221f375c94ef961ba8574ac4f85c8870ddd51" }, { "source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2011-1212.html" }, { "source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2011/06/27/1" }, { "source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=716825" }, { "source": "secalert@redhat.com", "tags": [ "Exploit", "Patch" ], "url": "https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d1221f375c94ef961ba8574ac4f85c8870ddd51" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2011-1212.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2011/06/27/1" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=716825" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Patch" ], "url": "https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-264" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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