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Mandriva Linux Security Advisory 2007.002

Mandriva Linux Security Advisory 2007.002
Posted Jan 3, 2007
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory - Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel. The Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which could allow a local user to cause a Denial of Service (process crash). The seqfile handling in the 2.6 kernel up to 2.6.18 allows local users to cause a DoS (hang or oops) via unspecified manipulations that trigger an infinite loop while searching for flowlabels. An integer overflow in the 2.6 kernel prior to 2.6.18.4 could allow a local user to execute arbitrary code via a large maxnum value in an ioctl request. A race condition in the ISO9660 filesystem handling could allow a local user to cause a DoS (infinite loop) by mounting a crafted ISO9660 filesystem containing malformed data structures. A vulnerability in the bluetooth support could allow for overwriting internal CMTP and CAPI data structures via malformed packets.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, mandriva
advisories | CVE-2006-5757, CVE-2006-5751, CVE-2006-5173, CVE-2006-5619, CVE-2006-6106
MD5 | c52590a8885f06097dd021687a1f9561

Mandriva Linux Security Advisory 2007.002

Change Mirror Download

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_______________________________________________________________________

Mandriva Linux Security Advisory MDKSA-2007:002
http://www.mandriva.com/security/
_______________________________________________________________________

Package : kernel
Date : January 2, 2007
Affected: 2007.0
_______________________________________________________________________

Problem Description:

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

The Linux kernel does not properly save or restore EFLAGS during a
context switch, or reset the flags when creating new threads, which
could allow a local user to cause a Denial of Service (process crash)
(CVE-2006-5173).

The seqfile handling in the 2.6 kernel up to 2.6.18 allows local users
to cause a DoS (hang or oops) via unspecified manipulations that
trigger an infinite loop while searching for flowlabels
(CVE-2006-5619).

An integer overflow in the 2.6 kernel prior to 2.6.18.4 could allow a
local user to execute arbitrary code via a large maxnum value in an
ioctl request (CVE-2006-5751).

A race condition in the ISO9660 filesystem handling could allow a local
user to cause a DoS (infinite loop) by mounting a crafted ISO9660
filesystem containing malformed data structures (CVE-2006-5757).

A vulnerability in the bluetooth support could allow for overwriting
internal CMTP and CAPI data structures via malformed packets
(CVE-2006-6106).

The provided packages are patched to fix these vulnerabilities. All
users are encouraged to upgrade to these updated kernels immediately
and reboot to effect the fixes.

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

- added the marvell IDE driver - use a specific driver Jmicron chipsets
rather than using a generic one - updated the sky2 driver to fix some
network hang issues

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

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

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5173
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5619
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5751
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5757
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6106
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2007.0:
7eba457234782c9f83c47cd26be3de80 2007.0/i586/kernel-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
80f104e8ff3081e7e868e3482f50fd81 2007.0/i586/kernel-enterprise-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
72964c8645531460b742f9e54d118488 2007.0/i586/kernel-legacy-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
bc52255a4290284600dfc0e97e5797cd 2007.0/i586/kernel-source-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
fbfc24233bf616eab08b247194210fe7 2007.0/i586/kernel-source-stripped-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
e30ec4041c80756ab8e004b6335337cd 2007.0/i586/kernel-xen0-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
4da4e24805a2a2301bf7f97f6e0fb974 2007.0/i586/kernel-xenU-2.6.17.8mdv-1-1mdv2007.0.i586.rpm
0cb62354da7ae0bd1dd6b851bedd9496 2007.0/SRPMS/kernel-2.6.17.8mdv-1-1mdv2007.0.src.rpm

Mandriva Linux 2007.0/X86_64:
c2aca75ee9ca338eb178e51fec0867fc 2007.0/x86_64/evince-0.6.0-1.1mdv2007.0.x86_64.rpm
d4c8250e75b57b227b308e2a975ae13c 2007.0/x86_64/kernel-2.6.17.8mdv-1-1mdv2007.0.x86_64.rpm
3cb5a059bc3d352da95fb285f2c31f80 2007.0/x86_64/kernel-source-2.6.17.8mdv-1-1mdv2007.0.x86_64.rpm
9ff265225b8624a083058b5ec16174c2 2007.0/x86_64/kernel-source-stripped-2.6.17.8mdv-1-1mdv2007.0.x86_64.rpm
23ba072d883bac51179e42df654aba79 2007.0/x86_64/kernel-xen0-2.6.17.8mdv-1-1mdv2007.0.x86_64.rpm
268ac512e41476f1e0df9d94299c317b 2007.0/x86_64/kernel-xenU-2.6.17.8mdv-1-1mdv2007.0.x86_64.rpm
0cb62354da7ae0bd1dd6b851bedd9496 2007.0/SRPMS/kernel-2.6.17.8mdv-1-1mdv2007.0.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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