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Mandrake Linux Security Advisory : kernel (MDKSA-2006:059)

high Nessus Plugin ID 21133

Synopsis

The remote Mandrake Linux host is missing one or more security updates.

Description

A number of vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

sysctl.c in the Linux kernel prior to 2.6.14.1 allows local users to cause a Denial of Service (kernel oops) and possibly execute code by opening an interface file in /proc/sys/net/ipv4/conf/, waiting until the interface is unregistered, then obtaining and modifying function pointers in memory that was used for the ctl_table (CVE-2005-2709).

Multiple vulnerabilities in versions prior to 2.6.13.2 allow local users to cause a DoS (oops from null dereference) via fput in a 32bit ioctl on 64-bit x86 systems or sockfd_put in the 32-bit routing_ioctl function on 64-bit systems (CVE-2005-3044). Note that this was previously partially corrected in MDKSA-2005:235.

Prior to 2.6.14, the kernel's atm module allows local users to cause a DoS (panic) via certain socket calls that produce inconsistent reference counts for loadable protocol modules (CVE-2005-3359).

A race condition in the (1) add_key, (2) request_key, and (3) keyctl functions in the 2.6.x kernel allows local users to cause a DoS (crash) or read sensitive kernel memory by modifying the length of a string argument between the time that the kernel calculates the length and when it copies the data into kernel memory (CVE-2006-0457).

Prior to 2.6.15.5, the kernel allows local users to obtain sensitive information via a crafted XFS ftruncate call, which may return stale data (CVE-2006-0554).

Prior to 2.6.15.5, the kernel allows local users to cause a DoS (NFS client panic) via unknown attack vectors related to the use of O_DIRECT (CVE-2006-0555).

Prior to an including kernel 2.6.16, sys_mbind in mempolicy.c does not sanity check the maxnod variable before making certain computations, which has an unknown impact and attack vectors (CVE-2006-0557).

Prior to 2.6.15.5, the kernel allows local users to cause a DoS ('endless recursive fault') via unknown attack vectors related to a 'bad elf entry address' on Intel processors (CVE-2006-0741).

Prior to 2.6.15.6, the die_if_kernel function in the kernel can allow local users to cause a DoS by causing user faults on Itanium systems (CVE-2006-00742).

A race in the signal-handling code which allows a process to become unkillable when the race is triggered was also fixed.

In addition to these security fixes, other fixes have been included such as :

 - add ich8 support

 - libata locking rewrite

 - libata clear ATA_QCFLAG_ACTIVE flag before calling the completion callback

 - support the Acer Aspire 5xxx/3xxx series in the acerhk module

 - USB storage: remove info sysfs file as it violates the sysfs one value per file rule

 - fix OOPS in sysfs_hash_and_remove_file()

 - pl2303 USB driver fixes; makes pl2303HX chip work correctly

 - fix OOPS in IPMI driver which is probably caused when trying to use ACPI functions when ACPI was not properly initialized

 - fix de_thread() racy BUG_ON()

The provided packages are patched to fix these vulnerabilities. All users are encouraged to upgrade to these updated kernels.

To update your kernel, please follow the directions located at :

http://www.mandriva.com/en/security/kernelupdate

Please note that users using the LSI Logic 53c1030 dual-channel ultra 320 SCSI card will need to re-create their initrd images manually prior to rebooting in order to fix a bug that prevents booting. A future update will correct this problem. To do this, execute :

# rm /boot/initrd-2.6.12-18mdk.img # mkinitrd /boot/initrd-2.6.12-18mdk.img 2.6.12-18mdk --with-module=mptspi

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 21133

File Name: mandrake_MDKSA-2006-059.nasl

Version: 1.15

Type: local

Published: 3/23/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:C

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:kernel-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-boot-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-i586-up-1gb-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-i686-up-4gb-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-smp-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-source-2.6, p-cpe:/a:mandriva:linux:kernel-source-stripped-2.6, p-cpe:/a:mandriva:linux:kernel-xbox-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-xen0-2.6.12.18mdk, p-cpe:/a:mandriva:linux:kernel-xenu-2.6.12.18mdk, cpe:/o:mandriva:linux:2006

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Patch Publication Date: 3/22/2006

Reference Information

CVE: CVE-2005-2709, CVE-2005-3044, CVE-2005-3359, CVE-2006-0457, CVE-2006-0554, CVE-2006-0555, CVE-2006-0557, CVE-2006-0741, CVE-2006-0742

MDKSA: 2006:059