Red Hat Security Advisory 2014-1023-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that Linux kernel's ptrace subsystem did not properly sanitize the address-space-control bits when the program-status word was being set. On IBM S/390 systems, a local, unprivileged user could use this flaw to set address-space-control bits to the kernel space, and thus gain read and write access to kernel memory. It was found that the permission checks performed by the Linux kernel when a netlink message was received were not sufficient. A local, unprivileged user could potentially bypass these restrictions by passing a netlink socket as stdout or stderr to a more privileged process and altering the output of this process.
f9da9b1899cc57348f709c1973cd2b23ba66942f2757b90ce1d32a5e61df9fa6Ubuntu Security Notice 2228-1 - 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. 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. Various other issues were also addressed.
cbc98ee7edf9f6b0c61ecb645c9d3e101aa77a558f1ea88158b44edf00b8d013Ubuntu Security Notice 2225-1 - 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. 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. Various other issues were also addressed.
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