Mandrake Linux Security Advisory : kernel (MDKSA-2007:195)

This script is Copyright (C) 2007-2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

Some vulnerabilities were discovered and corrected in the Linux 2.6
kernel :

A stack-based buffer overflow in the random number generator could
allow local root users to cause a denial of service or gain privileges
by setting the default wakeup threshold to a value greater than the
output pool size (CVE-2007-3105).

The lcd_write function did not limit the amount of memory used by a
caller, which allows local users to cause a denial of service (memory
consumption) (CVE-2007-3513).

The decode_choice function allowed remote attackers to cause a denial
of service (crash) via an encoded out-of-range index value for a
choice field which triggered a NULL pointer dereference
(CVE-2007-3642).

The Linux kernel allowed local users to send arbitrary signals to a
child process that is running at higher privileges by causing a
setuid-root parent process to die which delivered an
attacker-controlled parent process death signal (PR_SET_PDEATHSIG)
(CVE-2007-3848).

The aac_cfg_openm and aac_compat_ioctl functions in the SCSI layer
ioctl patch in aacraid did not check permissions for ioctls, which
might allow local users to cause a denial of service or gain
privileges (CVE-2007-4308).

The IA32 system call emulation functionality, when running on the
x86_64 architecture, did not zero extend the eax register after the
32bit entry path to ptrace is used, which could allow local users to
gain privileges by triggering an out-of-bounds access to the system
call table using the %RAX register (CVE-2007-4573).

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

- More NVidia PCI ids wre added

- The 3w-9xxx module was updated to version 2.26.02.010

- Fixed the map entry for ICH8

- Added the TG3 5786 PCI id

- Reduced the log verbosity of cx88-mpeg

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

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

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Mandriva Local Security Checks

Nessus Plugin ID: 27561 (mandrake_MDKSA-2007-195.nasl)

Bugtraq ID: 24734
25216
25348
25387
25774

CVE ID: CVE-2007-3105
CVE-2007-3513
CVE-2007-3642
CVE-2007-3848
CVE-2007-4308
CVE-2007-4573

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