Synopsis: Important: kernel security and bug fix update
Issue Date: 2011-05-31
CVE Numbers: CVE-2011-1078
CVE-2011-1079
CVE-2011-1080
CVE-2011-1093
CVE-2011-0726
CVE-2011-1163
—
CVE-2011-1170
CVE-2011-1171
CVE-2011-1172
CVE-2011-1494
CVE-2011-1495
CVE-2011-1166
CVE-2011-1577
CVE-2011-1763
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues:
* A flaw in the dccp_rcv_state_process() function could allow a remote
attacker to cause a denial of service, even when the socket was already
closed. (CVE-2011-1093, Important)
* Multiple buffer overflow flaws were found in the Linux kernel’s
Management Module Support for Message Passing Technology (MPT) based
controllers. A local, unprivileged user could use these flaws to cause a
denial of service, an information leak, or escalate their privileges.
(CVE-2011-1494, CVE-2011-1495, Important)
* A missing validation of a null-terminated string data structure element
in the bnep_sock_ioctl() function could allow a local user to cause an
information leak or a denial of service. (CVE-2011-1079, Moderate)
* Missing error checking in the way page tables were handled in the Xen
hypervisor implementation could allow a privileged guest user to cause the
host, and the guests, to lock up. (CVE-2011-1166, Moderate)
* A flaw was found in the way the Xen hypervisor implementation checked for
the upper boundary when getting a new event channel port. A privileged
guest user could use this flaw to cause a denial of service or escalate
their privileges. (CVE-2011-1763, Moderate)
* The start_code and end_code values in “/proc/[pid]/stat” were not
protected. In certain scenarios, this flaw could be used to defeat Address
Space Layout Randomization (ASLR). (CVE-2011-0726, Low)
* A missing initialization flaw in the sco_sock_getsockopt() function could
allow a local, unprivileged user to cause an information leak.
(CVE-2011-1078, Low)
* A missing validation of a null-terminated string data structure element
in the do_replace() function could allow a local user who has the
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low)
* A buffer overflow flaw in the DEC Alpha OSF partition implementation in
the Linux kernel could allow a local attacker to cause an information leak
by mounting a disk that contains specially-crafted partition tables.
(CVE-2011-1163, Low)
* Missing validations of null-terminated string data structure elements in
the do_replace(), compat_do_replace(), do_ipt_get_ctl(), do_ip6t_get_ctl(),
and do_arpt_get_ctl() functions could allow a local user who has the
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1170,
CVE-2011-1171, CVE-2011-1172, Low)
* A heap overflow flaw in the Linux kernel’s EFI GUID Partition Table (GPT)
implementation could allow a local attacker to cause a denial of service
by mounting a disk that contains specially-crafted partition tables.
(CVE-2011-1577, Low)
Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1494 and
CVE-2011-1495; Vasiliy Kulikov for reporting CVE-2011-1079, CVE-2011-1078,
CVE-2011-1080, CVE-2011-1170, CVE-2011-1171, and CVE-2011-1172; Kees Cook
for reporting CVE-2011-0726; and Timo Warns for reporting CVE-2011-1163
—
and CVE-2011-1577.
This update also fixes several bugs. Documentation for these bug fixes will
be available shortly from the Technical Notes document linked to in the
References section.
Users should upgrade to these updated packages, which contain backported
patches to correct these issues, and fix the bugs noted in the Technical
Notes. The system must be rebooted for this update to take effect.
—
SL5
x86_64
kernel-2.6.18-238.12.1.el5.x86_64.rpm
kernel-debug-2.6.18-238.12.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-238.12.1.el5.x86_64.rpm
kernel-devel-2.6.18-238.12.1.el5.x86_64.rpm
kernel-headers-2.6.18-238.12.1.el5.x86_64.rpm
kernel-xen-2.6.18-238.12.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-238.12.1.el5.x86_64.rpm
i386
kernel-2.6.18-238.12.1.el5.i686.rpm
kernel-debug-2.6.18-238.12.1.el5.i686.rpm
kernel-debug-devel-2.6.18-238.12.1.el5.i686.rpm
kernel-devel-2.6.18-238.12.1.el5.i686.rpm
kernel-headers-2.6.18-238.12.1.el5.i386.rpm
kernel-PAE-2.6.18-238.12.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-238.12.1.el5.i686.rpm
kernel-xen-2.6.18-238.12.1.el5.i686.rpm
kernel-xen-devel-2.6.18-238.12.1.el5.i686.rpm
noarch
kernel-doc-2.6.18-238.12.1.el5.noarch.rpm
– Scientific Linux Development Team
