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 _______________________________________________________________________
 
 Mandriva Linux Security Advisory                         MDKSA-2006:018
 http://www.mandriva.com/security/
 _______________________________________________________________________
 
 Package : kernel
 Date    : January 20, 2006
 Affected: 2006.0
 _______________________________________________________________________
 
 Problem Description:
 
 A number of vulnerabilites have been corrected in the Linux kernel:
 
 A race condition in the 2.6 kernel could allow a local user to cause a
 DoS by triggering a core dump in one thread while another thread has a
 pending SIGSTOP (CVE-2005-3527).
 
 The ptrace functionality in 2.6 kernels prior to 2.6.14.2, using
 CLONE_THREAD, does not use the thread group ID to check whether it is
 attaching to itself, which could allow local users to cause a DoS
 (CVE-2005-3783).
 
 The auto-reap child process in 2.6 kernels prior to 2.6.15 include
 processes with ptrace attached, which leads to a dangling ptrace
 reference and allows local users to cause a crash (CVE-2005-3784).
 
 A locking problem in the POSIX timer cleanup handling on exit on
 kernels 2.6.10 to 2.6.14 when running on SMP systems, allows a local
 user to cause a deadlock involving process CPU timers (CVE-2005-3805).
 
 The IPv6 flowlabel handling code in 2.4 and 2.6 kernels prior to
 2.4.32 and 2.6.14 modifes the wrong variable in certain circumstances,
 which allows local users to corrupt kernel memory or cause a crash by
 triggering a free of non-allocated memory (CVE-2005-3806).
 
 An integer overflow in 2.6.14 and earlier could allow a local user to
 cause a hang via 64-bit mmap calls that are not properly handled on a
 32-bit system (CVE-2005-3808).
 
 As well, other bugfixes are included in this update:
 
 Fixes to swsup and HDA sound fixes (DMA buffer fixes, and fixes for the
 AD1986a codec, added support for Nvidia chipsets, and new model
 information for the Gigabyte K8N51).
 
 MCP51 forcedeth support has been added.
 _______________________________________________________________________

 References:
 
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3527
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3783
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3784
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3805
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3806
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3808
 _______________________________________________________________________
 
 Updated Packages:
 
 Mandriva Linux 2006.0:
 c71acedddee438c177e44c59ace9231c  2006.0/RPMS/kernel-2.6.12.15mdk-1-1mdk.i586.rpm
 be94c46555066619429aba3c11e88c49  2006.0/RPMS/kernel-i586-up-1GB-2.6.12.15mdk-1-1mdk.i586.rpm
 0506cd9f49c7fa8998ea9611c22fa33b  2006.0/RPMS/kernel-i686-up-4GB-2.6.12.15mdk-1-1mdk.i586.rpm
 bdc7d06043c6a98a1a9d1baee3bc47dd  2006.0/RPMS/kernel-smp-2.6.12.15mdk-1-1mdk.i586.rpm
 e4283335d3c3f2ff679dbaf672e2a288  2006.0/RPMS/kernel-source-2.6-2.6.12-15mdk.i586.rpm
 4114739c58dd249e23afbde019ecf5e7  2006.0/RPMS/kernel-source-stripped-2.6-2.6.12-15mdk.i586.rpm
 f9f5deb668cfdaf90f66a50de54e8e54  2006.0/RPMS/kernel-xbox-2.6.12.15mdk-1-1mdk.i586.rpm
 bc0bade8d53184908296fac79fc07724  2006.0/RPMS/kernel-xen0-2.6.12.15mdk-1-1mdk.i586.rpm
 8e4f4040d6b08d25cf323a451301cfe6  2006.0/RPMS/kernel-xenU-2.6.12.15mdk-1-1mdk.i586.rpm
 786b6c30ae9c052de3a856d8933fe2fd  2006.0/SRPMS/kernel-2.6.12.15mdk-1-1mdk.src.rpm

 Mandriva Linux 2006.0/X86_64:
 cf1e06a1f851f40a4298b9d7f8135da5  x86_64/2006.0/RPMS/kernel-2.6.12.15mdk-1-1mdk.x86_64.rpm
 00a15f173dc072f60c810b8d513987c9  x86_64/2006.0/RPMS/kernel-smp-2.6.12.15mdk-1-1mdk.x86_64.rpm
 b82e5e65bb03c557a3d1f6f3145a58cd  x86_64/2006.0/RPMS/kernel-source-2.6-2.6.12-15mdk.x86_64.rpm
 6ed321add133142fb3f597e004c9747f  x86_64/2006.0/RPMS/kernel-source-stripped-2.6-2.6.12-15mdk.x86_64.rpm
 786b6c30ae9c052de3a856d8933fe2fd  x86_64/2006.0/SRPMS/kernel-2.6.12.15mdk-1-1mdk.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrivaUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 All packages are signed by Mandriva for security.  You can obtain the
 GPG public key of the Mandriva Security Team by executing:

  gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandriva Linux at:

  http://www.mandriva.com/security/advisories

 If you want to report vulnerabilities, please contact

  security_(at)_mandriva.com
 _______________________________________________________________________

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Mandriva Security Team
  <security*mandriva.com>
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