CVE-2010-2955 (GCVE-0-2010-2955)

Vulnerability from cvelistv5 – Published: 2010-09-08 19:00 – Updated: 2024-08-07 02:55
VLAI?
Summary
The cfg80211_wext_giwessid function in net/wireless/wext-compat.c in the Linux kernel before 2.6.36-rc3-next-20100831 does not properly initialize certain structure members, which allows local users to leverage an off-by-one error in the ioctl_standard_iw_point function in net/wireless/wext-core.c, and obtain potentially sensitive information from kernel heap memory, via vectors involving an SIOCGIWESSID ioctl call that specifies a large buffer size.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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\"Third Party Advisory\"]}, {\"url\": \"http://www.redhat.com/support/errata/RHSA-2010-0771.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.redhat.com/support/errata/RHSA-2010-0842.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/42885\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.ubuntu.com/usn/USN-1000-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.vupen.com/english/advisories/2011/0298\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=628434\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-193\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2010-2955\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2010-09-08T20:00:03.417\",\"lastModified\":\"2025-04-11T00:51:21.963\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The cfg80211_wext_giwessid function in net/wireless/wext-compat.c in the Linux kernel before 2.6.36-rc3-next-20100831 does not properly initialize certain structure members, which allows local users to leverage an off-by-one error in the ioctl_standard_iw_point function in net/wireless/wext-core.c, and obtain potentially sensitive information from kernel heap memory, via vectors involving an SIOCGIWESSID ioctl call that specifies a large buffer size.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n cfg80211_wext_giwessid en net/wireless/wext-compat.c en el kernel de Linux anterior a v2.6.36-rc3-next-20100831 no inicializa adecuadamente determinadas estructuras de miembros, lo que permite a usuarios locales aprovechar un error off-by-one en la funci\u00f3n net/wireless/wext-core.c y obtener informaci\u00f3n potencialmente sensible desde la memoria din\u00e1mica (heap) del kernel, a trav\u00e9s de vectores que involucran una llamada SIOCGIWESSID ioctl que especifica un gran tama\u00f1o de b\u00fafer.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-193\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.6.36\",\"matchCriteriaId\":\"C8DCE5E2-B055-4F05-8F0F-F19D1B7BA8D7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.36:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"D4407EF9-4ECF-408F-9ECB-0705E3FB65D5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.36:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"DBE26099-6D2C-4FAF-B15C-CBF985D59171\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.36:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"F2C193FF-3723-4BE9-8787-DED7D455FA8F\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FBF7B6A8-3DF9-46EC-A90E-6EF68C39F883\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_desktop:11:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"CC6C1408-671A-4436-A825-12170CFB5C9A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp1:*:*:*:*:*:*\",\"matchCriteriaId\":\"640FB29C-1A84-41E1-86DE-B542EA0EF153\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"F13F07CC-739B-465C-9184-0E9D708BD4C7\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"454A5D17-B171-4F1F-9E0B-F18D1E5CA9FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*\",\"matchCriteriaId\":\"7EBFE35C-E243-43D1-883D-4398D71763CC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A5D026D0-EF78-438D-BEDD-FC8571F3ACEB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A2BCB73E-27BB-4878-AD9C-90C4F20C25A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*\",\"matchCriteriaId\":\"01EDA41C-6B2E-49AF-B503-EB3882265C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"87614B58-24AB-49FB-9C84-E8DDBA16353B\"}]}]}],\"references\":[{\"url\":\"http://forums.grsecurity.net/viewtopic.php?f=3\u0026t=2290\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third 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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.