(RHSA-2008:0607) Important: kernel security and bug fix update

2008-07-23T04:00:00
ID RHSA-2008:0607
Type redhat
Reporter RedHat
Modified 2017-09-08T12:16:51

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

These updated packages fix the following security issue:

  • a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local unprivileged user to cause a denial of service. (CVE-2008-2136, Important)

As well, these updated packages fix the following bugs:

  • a possible kernel hang on hugemem systems, due to a bug in NFS, which may have caused systems to become unresponsive, has been resolved.

  • an inappropriate exit condition occurred in the architecture-specific "mmap()" realization, which fell into an infinite loop under certain conditions. On 64-bit systems, this issue may have manifested itself to users as a soft lockup, or process hangs.

  • due to a bug in hardware initialization in the "ohci_hcd" kernel module, the kernel may have failed with a NULL pointer dereference. On 64-bit PowerPC systems, this may have caused booting to fail, and drop to xmon. On other platforms, a kernel oops occurred.

  • due to insufficient locks in task termination code, a panic may have occurred in the "sys_times()" system call on SMP machines.

Red Hat Enterprise Linux 4 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.