Ubuntu 1805-1: Linux kernel vulnerabilities

    Date19 Apr 2013
    CategoryUbuntu
    48
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Ubuntu Security Notice USN-1805-1
    April 19, 2013
    
    linux vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux: Linux kernel
    
    Details:
    
    Mathias Krause discovered an information leak in the Linux kernel's
    getsockname implementation for Logical Link Layer (llc) sockets. A local
    user could exploit this flaw to examine some of the kernel's stack memory.
    (CVE-2012-6542)
    
    Mathias Krause discovered information leaks in the Linux kernel's Bluetooth
    Logical Link Control and Adaptation Protocol (L2CAP) implementation. A
    local user could exploit these flaws to examine some of the kernel's stack
    memory. (CVE-2012-6544)
    
    Mathias Krause discovered information leaks in the Linux kernel's Bluetooth
    RFCOMM protocol implementation. A local user could exploit these flaws to
    examine parts of kernel memory. (CVE-2012-6545)
    
    Mathias Krause discovered information leaks in the Linux kernel's
    Asynchronous Transfer Mode (ATM) networking stack. A local user could
    exploit these flaws to examine some parts of kernel memory. (CVE-2012-6546)
    
    Mathias Krause discovered an information leak in the Linux kernel's UDF
    file system implementation. A local user could exploit this flaw to examine
    some of the kernel's heap memory. (CVE-2012-6548)
    
    Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's
    Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged
    guest OS user could exploit this flaw to cause a denial of service (crash
    the system) or gain guest OS privilege. (CVE-2013-0228)
    
    An information leak was discovered in the Linux kernel's Bluetooth stack
    when HIDP (Human Interface Device Protocol) support is enabled. A local
    unprivileged user could exploit this flaw to cause an information leak from
    the kernel. (CVE-2013-0349)
    
    A flaw was discovered in the Edgeort USB serial converter driver when the
    device is disconnected while it is in use. A local user could exploit this
    flaw to cause a denial of service (system crash). (CVE-2013-1774)
    
    Andrew Honig discovered a flaw in guest OS time updates in the Linux
    kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could
    exploit this flaw to cause a denial of service (crash host system) or
    potential escalate privilege to the host kernel level. (CVE-2013-1796)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 10.04 LTS:
      linux-image-2.6.32-46-386       2.6.32-46.108
      linux-image-2.6.32-46-generic   2.6.32-46.108
      linux-image-2.6.32-46-generic-pae  2.6.32-46.108
      linux-image-2.6.32-46-ia64      2.6.32-46.108
      linux-image-2.6.32-46-lpia      2.6.32-46.108
      linux-image-2.6.32-46-powerpc   2.6.32-46.108
      linux-image-2.6.32-46-powerpc-smp  2.6.32-46.108
      linux-image-2.6.32-46-powerpc64-smp  2.6.32-46.108
      linux-image-2.6.32-46-preempt   2.6.32-46.108
      linux-image-2.6.32-46-server    2.6.32-46.108
      linux-image-2.6.32-46-sparc64   2.6.32-46.108
      linux-image-2.6.32-46-sparc64-smp  2.6.32-46.108
      linux-image-2.6.32-46-versatile  2.6.32-46.108
      linux-image-2.6.32-46-virtual   2.6.32-46.108
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1805-1
      CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546,
      CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774,
      CVE-2013-1796
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/2.6.32-46.108
    
    
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