UBUNTU-CVE-2010-2955

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    UBUNTU-CVE-2010-2955

    Published: 8 Sept 2010Last Modified: 4 Feb 2026
    Upstream:
    CVE-2010-2955
    Aliases:
    USN-1023-1
    USN-1074-1
    USN-1074-2

    Summary:

    Details: 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: https://ubuntu.com/security/CVE-2010-2955, https://ubuntu.com/security/notices/USN-1074-1, https://ubuntu.com/security/notices/USN-1074-2, https://ubuntu.com/security/notices/USN-1083-1, https://ubuntu.com/security/notices/USN-1093-1, https://ubuntu.com/security/notices/USN-1119-1, https://ubuntu.com/security/notices/USN-1023-1, https://www.cve.org/CVERecord?id=CVE-2010-2955

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.11.0-12.19

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High