FKIE_CVE-2010-2955

Vulnerability from fkie_nvd - Published: 2010-09-08 20:00 - Updated: 2026-06-16 23:21
Severity
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.
References
secalert@redhat.comhttp://forums.grsecurity.net/viewtopic.php?f=3&t=2290Third Party Advisory
secalert@redhat.comhttp://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git%3Ba=commit%3Bh=42da2f948d949efd0111309f5827bf0298bcc9a4
secalert@redhat.comhttp://grsecurity.net/~spender/wireless-infoleak-fix2.patchBroken Link
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://lkml.org/lkml/2010/8/27/413Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://lkml.org/lkml/2010/8/30/127Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://lkml.org/lkml/2010/8/30/146Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://lkml.org/lkml/2010/8/30/351Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://secunia.com/advisories/41245Third Party Advisory
secalert@redhat.comhttp://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.36-rc3-next-20100831.bz2Broken Link
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2010/08/31/1Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2010-0771.htmlThird Party Advisory
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2010-0842.htmlThird Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/42885Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
secalert@redhat.comhttp://www.vupen.com/english/advisories/2011/0298Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=628434Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://forums.grsecurity.net/viewtopic.php?f=3&t=2290Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git%3Ba=commit%3Bh=42da2f948d949efd0111309f5827bf0298bcc9a4
af854a3a-2127-422b-91ae-364da2661108http://grsecurity.net/~spender/wireless-infoleak-fix2.patchBroken Link
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lkml.org/lkml/2010/8/27/413Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lkml.org/lkml/2010/8/30/127Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lkml.org/lkml/2010/8/30/146Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lkml.org/lkml/2010/8/30/351Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/41245Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.36-rc3-next-20100831.bz2Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2010/08/31/1Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2010-0771.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2010-0842.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/42885Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2011/0298Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=628434Issue Tracking, Third Party Advisory

{
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ],
      "source": "secalert@redhat.com"
    }
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  "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."
    }
  ],
  "id": "CVE-2010-2955",
  "lastModified": "2026-06-16T23:21:49.830",
  "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": "2010-09-08T20:00:03.417",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://forums.grsecurity.net/viewtopic.php?f=3\u0026t=2290"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git%3Ba=commit%3Bh=42da2f948d949efd0111309f5827bf0298bcc9a4"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Broken Link"
      ],
      "url": "http://grsecurity.net/~spender/wireless-infoleak-fix2.patch"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html"
    },
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      "tags": [
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    },
    {
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      "tags": [
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        "Patch",
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      "url": "http://secunia.com/advisories/41245"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      "tags": [
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    {
      "source": "secalert@redhat.com",
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-193"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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