Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the kernel packages
Detailed Explanation for this Vulnerability Assessment
Updated kernel packages that fix a number of security issues as well as
other bugs are now available for Red Hat Enterprise Linux 2.1 (32 bit
This security advisory has been rated as having important security impact
by the Red Hat Security Response Team.
The Linux kernel handles the basic functions of the operating system.
These new kernel packages contain fixes for the security issues described
- a flaw in network IGMP processing that a permited a remote user on the
local network to cause a denial of service (disabling of multicast reports)
if the system is running multicast applications (CVE-2002-2185, moderate)
- a race condition that permited local users to read the environment
variables of another process (CVE-2004-1058, low)
- a flaw in the open_exec function of execve that permited a local user to
read setuid ELF binaries that should otherwise be protected by standard
permissions. (CVE-2004-1073, moderate). Red Hat originally reported this
flaw as being fixed by RHSA-2004:504, but a patch for this issue was
missing from that update.
- a flaw in the coda module that permited a local user to cause a denial of
service (crash) or possibly gain rights (CVE-2005-0124, moderate)
- a potential leak of kernel data from ext2 file system handling
- flaws in ISO-9660 file system handling that permited the mounting of
an invalid image on a CD-ROM to cause a denial of service (crash)
or potentially execute arbitrary code (CVE-2005-0815, moderate)
- a flaw in gzip/zlib handling internal to the kernel that may permit a
local user to cause a denial of service (crash) (CVE-2005-2458, low)
- a flaw in procfs handling during unloading of modules that permited a
local user to cause a denial of service or potentially gain rights
- a flaw in IPv6 network UDP port hash table lookups that permited a local
user to cause a denial of service (hang) (CVE-2005-2973, important)
- a network buffer info leak using the orinoco driver that permited a remote
user to possibly view uninitialized data (CVE-2005-3180, important)
- a flaw in IPv4 network TCP and UDP netfilter handling that permited a
local user to cause a denial of service (crash) (CVE-2005-3275, important)
- a flaw in the IPv6 flowlabel code that permited a local user to cause a
denial of service (crash) (CVE-2005-3806, important)
The following bugs were also addressed:
- Handle set_brk() errors in binfmt_elf/aout
- Correct error handling in shmem_ioctl
- Correct scsi error return
- Fix netdump time keeping bug
- Fix netdump link-down freeze
- Fix FAT fs deadlock
All Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels
to the packages associated with their machine architectures and
configurations as listed in this erratum.
Solution : http://rhn.redhat.com/errata/RHSA-2006-0191.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security
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