USN-2337-1

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USN-2337-1

Summary: linux vulnerabilities

Details: A flaw was discovered in the Linux kernel virtual machine's (kvm) validation of interrupt requests (irq). A guest OS user could exploit this flaw to cause a denial of service (host OS crash). (CVE-2014-0155) Andy Lutomirski discovered a flaw in the authorization of netlink socket operations when a socket is passed to a process of more privilege. A local user could exploit this flaw to bypass access restrictions by having a privileged executable do something it was not intended to do. (CVE-2014-0181) An information leak was discovered in the Linux kernels aio_read_events_ring function. A local user could exploit this flaw to obtain potentially sensitive information from kernel memory. (CVE-2014-0206) A flaw was discovered in the Linux kernel's implementation of user namespaces with respect to inode permissions. A local user could exploit this flaw by creating a user namespace to gain administrative privileges. (CVE-2014-4014) An information leak was discovered in the rd_mcp backend of the iSCSI target subsystem in the Linux kernel. A local user could exploit this flaw to obtain sensitive information from ramdisk_mcp memory by leveraging access to a SCSI initiator. (CVE-2014-4027) Sasha Levin reported an issue with the Linux kernel's shared memory subsystem when used with range notifications and hole punching. A local user could exploit this flaw to cause a denial of service. (CVE-2014-4171) Toralf Förster reported an error in the Linux kernels syscall auditing on 32 bit x86 platforms. A local user could exploit this flaw to cause a denial of service (OOPS and system crash). (CVE-2014-4508) An information leak was discovered in the control implemenation of the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. A local user could exploit this flaw to obtain sensitive information from kernel memory. (CVE-2014-4652) A use-after-free flaw was discovered in the Advanced Linux Sound Architecture (ALSA) control implementation of the Linux kernel. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-4653) A authorization bug was discovered with the snd_ctl_elem_add function of the Advanced Linux Sound Architecture (ALSA) in the Linux kernel. A local user could exploit his bug to cause a denial of service (remove kernel controls). (CVE-2014-4654) A flaw discovered in how the snd_ctl_elem function of the Advanced Linux Sound Architecture (ALSA) handled a reference count. A local user could exploit this flaw to cause a denial of service (integer overflow and limit bypass). (CVE-2014-4655) An integer overflow flaw was discovered in the control implementation of the Advanced Linux Sound Architecture (ALSA). A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-4656) An integer underflow flaw was discovered in the Linux kernel's handling of the backlog value for certain SCTP packets. A remote attacker could exploit this flaw to cause a denial of service (socket outage) via a crafted SCTP packet. (CVE-2014-4667) Vasily Averin discover a reference count flaw during attempts to umount in conjunction with a symlink. A local user could exploit this flaw to cause a denial of service (memory consumption or use after free) or possibly have other unspecified impact. (CVE-2014-5045)

References: https://ubuntu.com/security/notices/USN-2337-1, https://ubuntu.com/security/CVE-2014-0155, https://ubuntu.com/security/CVE-2014-0181, https://ubuntu.com/security/CVE-2014-0206, https://ubuntu.com/security/CVE-2014-4014, https://ubuntu.com/security/CVE-2014-4027, https://ubuntu.com/security/CVE-2014-4171, https://ubuntu.com/security/CVE-2014-4508, https://ubuntu.com/security/CVE-2014-4652, https://ubuntu.com/security/CVE-2014-4653, https://ubuntu.com/security/CVE-2014-4654, https://ubuntu.com/security/CVE-2014-4655, https://ubuntu.com/security/CVE-2014-4656, https://ubuntu.com/security/CVE-2014-4667, https://ubuntu.com/security/CVE-2014-5045