Ubuntu 1383-1: Linux kernel (OMAP4) vulnerabilities

    Date06 Mar 2012
    CategoryUbuntu
    58
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Ubuntu Security Notice USN-1383-1
    March 06, 2012
    
    linux-ti-omap4 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 11.04
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux-ti-omap4: Linux kernel for OMAP4
    
    Details:
    
    Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's
    handling of IPv4 icmp packets. A remote user could exploit this to cause a
    denial of service. (CVE-2011-1927)
    
    Dan Rosenberg reported an error in the old ABI compatibility layer of ARM
    kernels. A local attacker could exploit this flaw to cause a denial of
    service or gain root privileges. (CVE-2011-1759)
    
    Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM
    partitions. A local user could exploit this to cause a denial of service or
    escalate privileges. (CVE-2011-2182)
    
    The linux kernel did not properly account for PTE pages when deciding which
    task to kill in out of memory conditions. A local, unprivileged could
    exploit this flaw to cause a denial of service. (CVE-2011-2498)
    
    A flaw was discovered in the TOMOYO LSM's handling of mount system calls.
    An unprivileged user could oops the system causing a denial of service.
    (CVE-2011-2518)
    
    A flaw was discovered in the Linux kernel's AppArmor security interface
    when invalid information was written to it. An unprivileged local user
    could use this to cause a denial of service on the system. (CVE-2011-3619)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 11.04:
      linux-image-2.6.38-1209-omap4   2.6.38-1209.22
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1383-1
      CVE-2011-1759, CVE-2011-1927, CVE-2011-2182, CVE-2011-2498,
      CVE-2011-2518, CVE-2011-3619
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-ti-omap4/2.6.38-1209.22
    
    
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