Ubuntu 2225-1: Linux kernel (Saucy HWE) vulnerabilities

    Date27 May 2014
    CategoryUbuntu
    74
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Ubuntu Security Notice USN-2225-1
    May 27, 2014
    
    linux-lts-saucy vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux-lts-saucy: Linux hardware enablement kernel from Saucy
    
    Details:
    
    Matthew Daley reported an information leak in the floppy disk driver of the
    Linux kernel. An unprivileged local user could exploit this flaw to obtain
    potentially sensitive information from kernel memory. (CVE-2014-1738)
    
    Matthew Daley reported a flaw in the handling of ioctl commands by the
    floppy disk driver in the Linux kernel. An unprivileged local user could
    exploit this flaw to gain administrative privileges if the floppy disk
    module is loaded. (CVE-2014-1737)
    
    A flaw was discovered in the vhost-net subsystem of the Linux kernel. Guest
    OS users could exploit this flaw to cause a denial of service (host OS
    crash). (CVE-2014-0055)
    
    A flaw was discovered in the handling of network packets when mergeable
    buffers are disabled for virtual machines in the Linux kernel. Guest OS
    users may exploit this flaw to cause a denial of service (host OS crash) or
    possibly gain privilege on the host OS. (CVE-2014-0077)
    
    Nikolay Aleksandrov discovered a race condition in Linux kernel's IPv4
    fragment handling code. Remote attackers could exploit this flaw to cause a
    denial of service (system crash) or possibly have other unspecified impact.
    (CVE-2014-0100)
    
    A flaw was discovered in the Linux kernel's handling of the SCTP handshake.
    A remote attacker could exploit this flaw to cause a denial of service
    (system crash). (CVE-2014-0101)
    
    A flaw was discovered in the handling of routing information in Linux
    kernel's IPv6 stack. A remote attacker could exploit this flaw to cause a
    denial of service (memory consumption) via a flood of ICMPv6 router
    advertisement packets. (CVE-2014-2309)
    
    An error was discovered in the Linux kernel's DCCP protocol support. A
    remote attacked could exploit this flaw to cause a denial of service
    (system crash) or possibly execute arbitrary code. (CVE-2014-2523)
    
    Max Sydorenko discovered a race condition in the Atheros 9k wireless driver
    in the Linux kernel. This race could be exploited by remote attackers to
    cause a denial of service (system crash). (CVE-2014-2672)
    
    Adhemerval Zanella Neto discovered a flaw the in the Transactional Memory
    (TM) implementation for powerpc based machine. An unprivileged local user
    could exploit this flaw to cause a denial of service (system crash).
    (CVE-2014-2673)
    
    An error was discovered in the Reliable Datagram Sockets (RDS) protocol
    stack in the Linux kernel. A local user could exploit this flaw to cause a
    denial of service (system crash) or possibly have unspecified other impact.
    (CVE-2014-2678)
    
    Yaara Rozenblum discovered a race condition in the Linux kernel's Generic
    IEEE 802.11 Networking Stack (mac80211). Remote attackers could exploit
    this flaw to cause a denial of service (system crash). (CVE-2014-2706)
    
    A flaw was discovered in the Linux kernel's ping sockets. An unprivileged
    local user could exploit this flaw to cause a denial of service (system
    crash) or possibly gain privileges via a crafted application.
    (CVE-2014-2851)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      linux-image-3.11.0-22-generic   3.11.0-22.38~precise1
      linux-image-3.11.0-22-generic-lpae  3.11.0-22.38~precise1
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    ATTENTION: Due to an unavoidable ABI change the kernel updates have
    been given a new version number, which requires you to recompile and
    reinstall all third party kernel modules you might have installed. If
    you use linux-restricted-modules, you have to update that package as
    well to get modules which work with the new kernel version. Unless you
    manually uninstalled the standard kernel metapackages (e.g. linux-generic,
    linux-server, linux-powerpc), a standard system upgrade will automatically
    perform this as well.
    
    References:
      http://www.ubuntu.com/usn/usn-2225-1
      CVE-2014-0055, CVE-2014-0077, CVE-2014-0100, CVE-2014-0101,
      CVE-2014-1737, CVE-2014-1738, CVE-2014-2309, CVE-2014-2523,
      CVE-2014-2672, CVE-2014-2673, CVE-2014-2678, CVE-2014-2706,
      CVE-2014-2851
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-lts-saucy/3.11.0-22.38~precise1
    
    
    
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