Red Hat ENTERPRISE 5.4 RELEASE NOTES, Manual

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Chapter 1. Package Updates
122
1.110.6. RHSA-2009:0326: Important security and bug fix update
Important
This update has already been released (prior to the GA of this release) as the security
errata
RHSA-2009:0326
841
Updated kernel packages that fix several security issues and several bugs are now available for Red
Hat Enterprise Linux 5.
This update has been rated as having important security impact by the Red Hat Security Response
Team.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security fixes:
• memory leaks were found on some error paths in the icmp_send() function in the Linux kernel. This
could, potentially, cause the network connectivity to cease. (
CVE-2009-0778
842
, Important)
• Chris Evans reported a deficiency in the clone() system call when called with the CLONE_PARENT
flag. This flaw permits the caller (the parent process) to indicate an arbitrary signal it wants to
receive when its child process exits. This could lead to a denial of service of the parent process.
(
CVE-2009-0028
843
, Moderate)
• an off-by-one underflow flaw was found in the eCryptfs subsystem. This could potentially cause a
local denial of service when the readlink() function returned an error. (
CVE-2009-0269
844
, Moderate)
• a deficiency was found in the Remote BIOS Update (RBU) driver for Dell systems. This could allow
a local, unprivileged user to cause a denial of service by reading zero bytes from the image_type or
packet_size files in "/sys/devices/platform/dell_rbu/". (
CVE-2009-0322
845
, Moderate)
• an inverted logic flaw was found in the SysKonnect FDDI PCI adapter driver, allowing driver
statistics to be reset only when the CAP_NET_ADMIN capability was absent (local, unprivileged
users could reset driver statistics). (
CVE-2009-0675
846
, Moderate)
• the sock_getsockopt() function in the Linux kernel did not properly initialize a data structure that can
be directly returned to user-space when the getsockopt() function is called with SO_BSDCOMPAT
optname set. This flaw could possibly lead to memory disclosure. (
CVE-2009-0676
847
, Moderate)
• the ext2 and ext3 file system code failed to properly handle corrupted data structures, leading to a
possible local denial of service when read or write operations were performed on a specially-crafted
file system. (
CVE-2008-3528
848
, Low)
• a deficiency was found in the libATA implementation. This could, potentially, lead to a local
denial of service. Note: by default, the "/dev/sg*" devices are accessible only to the root user.
(
CVE-2008-5700
849
, Low)
Bug fixes:
• a bug in aic94xx may have caused kernel panics during boot on some systems with certain SATA
disks. (
BZ#485909
850
)