Linux Security
    Linux Security
    Linux Security

    Debian: DSA-3093-1: linux security update

    Date 08 Dec 2014
    242
    Posted By LinuxSecurity Advisories
    Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation: CVE-2014-7841
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3093-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                      Salvatore Bonaccorso
    December 08, 2014                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : linux
    CVE ID         : CVE-2014-7841 CVE-2014-8369 CVE-2014-8884 CVE-2014-9090
    
    Several vulnerabilities have been discovered in the Linux kernel that
    may lead to a denial of service or privilege escalation:
    
    CVE-2014-7841
    
        Liu Wei of Red Hat discovered that a SCTP server doing ASCONF will
        panic on malformed INIT chunks by triggering a NULL pointer
        dereference.
    
    CVE-2014-8369
    
        A flaw was discovered in the way iommu mapping failures were handled
        in the kvm_iommu_map_pages() function in the Linux kernel. A guest
        OS user could exploit this flaw to cause a denial of service (host
        OS memory corruption) or possibly have other unspecified impact on
        the host OS.
    
    CVE-2014-8884
    
        A stack-based buffer overflow flaw was discovered in the
        TechnoTrend/Hauppauge DEC USB driver. A local user with write access
        to the corresponding device could use this flaw to crash the kernel
        or, potentially, elevate their privileges.
    
    CVE-2014-9090
    
        Andy Lutomirski discovered that the do_double_fault function in
        arch/x86/kernel/traps.c in the Linux kernel did not properly handle
        faults associated with the Stack Segment (SS) segment register,
        which allows local users to cause a denial of service (panic).
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 3.2.63-2+deb7u2. This update also includes fixes for regressions
    introduced by previous updates.
    
    For the unstable distribution (sid), these problems will be fixed soon
    in version 3.16.7-ckt2-1.
    
    We recommend that you upgrade your linux packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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