Bug 9212

Summary:	Update request: kernel-vserver-3.4.34-1.mga2
Product:	Mageia	Reporter:	Thomas Backlund <tmb>
Component:	Security	Assignee:	QA Team <qa-bugs>
Status:	RESOLVED FIXED	QA Contact:	Sec team <security>
Severity:	critical
Priority:	High	CC:	davidwhodgins, sysadmin-bugs
Version:	2	Keywords:	validated_update
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:	MGA2-64-OK MGA2-32-OK
Source RPM:	kernel-vserver-3.4.34-1.mga2	CVE:
Status comment:

Description Thomas Backlund 2013-03-01 00:48:36 CET

Advisory:
This updates kernel-vserver to upstream stable 3.4.34.

It also fixes the following security issues:

An unprivileged user can send a netlink message resulting in an
out-of-bounds access of the sock_diag_handlers[] array which, in turn,
allows userland to take over control while in kernel mode.
(CVE-2013-1763).

Linux kernel is prone to a local privilege-escalation vulnerability due
to a tmpfs use-after-free error. 
Local attackers can exploit the issue to execute arbitrary code with
kernel privileges or to crash the kernel, effectively denying service
to legitimate users (CVE-2013-1767).

Linux kernel built with Edgeport USB serial converter driver io_ti,
is vulnerable to a NULL pointer dereference flaw. It happens if the
device is disconnected while corresponding /dev/ttyUSB? file is in use.
An unprivileged user could use this flaw to crash the system, resulting
DoS (CVE-2013-1774).

References:
-----------
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1763
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1767
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1774
http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.4.34
http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.4.33


i586:
-----
kernel-vserver-3.4.34-1.mga2-1-1.mga2.i586.rpm
kernel-vserver-devel-3.4.34-1.mga2-1-1.mga2.i586.rpm
kernel-vserver-devel-latest-3.4.34-1.mga2.i586.rpm
kernel-vserver-doc-3.4.34-1.mga2.noarch.rpm
kernel-vserver-latest-3.4.34-1.mga2.i586.rpm
kernel-vserver-source-3.4.34-1.mga2-1-1.mga2.noarch.rpm
kernel-vserver-source-latest-3.4.34-1.mga2.noarch.rpm

x86_64:
-------
kernel-vserver-3.4.34-1.mga2-1-1.mga2.x86_64.rpm
kernel-vserver-devel-3.4.34-1.mga2-1-1.mga2.x86_64.rpm
kernel-vserver-devel-latest-3.4.34-1.mga2.x86_64.rpm
kernel-vserver-doc-3.4.34-1.mga2.noarch.rpm
kernel-vserver-latest-3.4.34-1.mga2.x86_64.rpm
kernel-vserver-source-3.4.34-1.mga2-1-1.mga2.noarch.rpm
kernel-vserver-source-latest-3.4.34-1.mga2.noarch.rpm

SRPMS:
------
kernel-vserver-3.4.34-1.mga2.src.rpm


Reproducible: 

Steps to Reproduce:

Thomas Backlund 2013-03-01 00:49:54 CET

Priority: Normal => High

Comment 1 claire robinson 2013-03-01 09:44:46 CET

PoC: http://www.securityfocus.com/bid/58137/exploit

Comment 2 Dave Hodgins 2013-03-02 02:27:54 CET

Testing complete on Mageia 2 i586.  The poc doesn't work on i586, so
just testing that the updating works properly, etc.

As expected, dkms generated modules still fail to load with
errors such as ...
ERROR: could not insert 'fglrx': Exec format error
insmod /lib/modules/3.4.34-vserver-1.mga2/dkms/drivers/char/drm/fglrx.ko.xz

Other then that, it's working ok.

Claire, have you tested the vserver kernel on x86_64?

CC: (none) => davidwhodgins

Comment 3 Dave Hodgins 2013-03-02 03:07:06 CET

Testing complete on Mageia 2 x86_64.

Could someone from the sysadmin team push the
kernel-vserver-3.4.34-1.mga2 srpms
from updates testing to updates.

See description for list of srpms and advisory.

Keywords: (none) => validated_update
CC: (none) => sysadmin-bugs
Whiteboard: (none) => MGA2-64-OK MGA2-32-OK

Comment 4 Thomas Backlund 2013-03-02 15:26:57 CET

Update pushed:
https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0082

Status: NEW => RESOLVED
Resolution: (none) => FIXED