CVE-2015-3214

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    CVE-2015-3214

    Published: 31 Aug 2015Last Modified: 16 Apr 2026

    Summary:

    Details: The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index.

    References: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924, http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33, http://rhn.redhat.com/errata/RHSA-2015-1507.html, http://rhn.redhat.com/errata/RHSA-2015-1508.html, http://rhn.redhat.com/errata/RHSA-2015-1512.html, http://www.debian.org/security/2015/dsa-3348, http://www.securityfocus.com/bid/75273, http://www.securitytracker.com/id/1032598, https://github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924, https://security.gentoo.org/glsa/201510-02, https://support.lenovo.com/product_security/qemu, https://support.lenovo.com/us/en/product_security/qemu, https://www.arista.com/en/support/advisories-notices/security-advisories/1180-security-advisory-13, https://www.exploit-db.com/exploits/37990/, http://www.openwall.com/lists/oss-security/2015/06/25/7, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924, https://github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924, http://rhn.redhat.com/errata/RHSA-2015-1507.html, http://rhn.redhat.com/errata/RHSA-2015-1508.html, http://www.debian.org/security/2015/dsa-3348, https://bugzilla.redhat.com/show_bug.cgi?id=1229640, https://security.gentoo.org/glsa/201510-02, http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33, https://www.mail-archive.com/qemu-devel%40nongnu.org/msg304138.html

    Affected packages

    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
    CVE-2015-3214 | CVE-DB