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Scientific Linux Security Update : kernel on SL4.x i386/x86_64
medium Nessus Plugin ID 60215
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
These new kernel packages contain fixes for the security issues described below :- a flaw in the connection tracking support for SCTP that allowed a remote user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-2876, Important)
- a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (crash). (CVE-2006-7203, Important)
- a flaw in the IPv4 forwarding base that allowed a local user to cause an out-of-bounds access. (CVE-2007-2172, Important)
- a flaw in the PPP over Ethernet implementation that allowed a local user to cause a denial of service (memory consumption) by creating a socket using connect and then releasing it before the PPPIOCGCHAN ioctl has been called. (CVE-2007-2525, Important)
- a flaw in the fput ioctl handling of 32-bit applications running on 64-bit platforms that allowed a local user to cause a denial of service (panic). (CVE-2007-0773, Important)
- a flaw in the NFS locking daemon that allowed a local user to cause denial of service (deadlock).
(CVE-2006-5158, Moderate)
- a flaw in the sysfs_readdir function that allowed a local user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-3104, Moderate)
- a flaw in the core-dump handling that allowed a local user to create core dumps from unreadable binaries via PT_INTERP. (CVE-2007-0958, Low)
- a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak. (CVE-2007-1353, Low)
In addition, the following bugs were addressed :
- the NFS could recurse on the same spinlock. Also, NFS, under certain conditions, did not completely clean up Posix locks on a file close, leading to mount failures.
- the 32bit compatibility didn't return to userspace correct values for the rt_sigtimedwait system call.
- the count for unused inodes could be incorrect at times, resulting in dirty data not being written to disk in a timely manner.
- the cciss driver had an incorrect disk size calculation (off-by-one error) which prevented disk dumps.
NOTE1: From The Upstream Vendors release notes 'During PCI probing, Red Hat Enterprise Linux 4 Update 5 attempts to use information obtained from MCFG (memory-mapped PCI configuration space). On AMD-systems, this type of access does not work on some buses, as the kernel cannot parse the MCFG table.
To work around this, add the parameter pci=conf1 or pci=nommconf on the kernel boot line in /etc/grub.conf. For example :
title Red Hat Enterprise Linux AS (2.6.9-42.0.2.EL) root (hd0,0) kernel /vmlinuz-2.6.9-42.0.2.EL ro root=/dev/VolGroup00/LogVol00 rhgb quiet pci=conf1 initrd /initrd-2.6.9-42.0.2.EL.img
Doing this instructs the kernel to use PCI Conf1 access instead of MCFG-based access.'
NOTE2: From The Upstream Vendors Knowledge Base 'Why did the ordering of my NIC devices change in Red Hat Enterprise Linux 4.5?
The 2.6.9-55 version of the Red Hat Enterprise Linux 4 kernel (Update 5) reverts to the 2.4 ordering of network interface cards (NICs) on certain systems. Note that if the 'HWADDR=MAC ADDRESS' line is present in the /etc/sysconfig/network-scripts/ifcfg-ethX files, the NIC ordering will not change.
To restore the original 2.6 ordering, which is different from the 2.4 ordering, boot with the option pci=nobfsort '
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 60215
File Name: sl_20070625_kernel_on_SL4_x.nasl
Version: 1.7
Type: local
Agent: unix
Published: 8/1/2012
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.7
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C
Vulnerability Information
CPE: x-cpe:/o:fermilab:scientific_linux
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list
Patch Publication Date: 6/25/2007
Vulnerability Publication Date: 10/5/2006
Reference Information
CVE: CVE-2006-5158, CVE-2006-7203, CVE-2007-0773, CVE-2007-0958, CVE-2007-1353, CVE-2007-2172, CVE-2007-2525, CVE-2007-2876, CVE-2007-3104