Re: [SECURITY] [DSA 2668-1] linux-2.6 security update
Apologies, hit the wrong reply to! Please ignore and thanks for all the good
work.
On Tue, May 14, 2013 at 09:15:48PM +0100, Jon Marshall wrote:
> Saw this earlier, apparently there is a serious issue that affects all of the
> kernels up to 3.8
>
> Will do a security thing tomorrow, if I get a chance, but it has been a while
> since we've had a look at it, my fault.
>
> Will update once I've reviewed.
>
> On Tue, May 14, 2013 at 01:14:29PM -0600, dann frazier wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > - ----------------------------------------------------------------------
> > Debian Security Advisory DSA-2668-1 security@debian.org
> > http://www.debian.org/security/ Dann Frazier
> > May 14, 2013 http://www.debian.org/security/faq
> > - ----------------------------------------------------------------------
> >
> > Package : linux-2.6
> > Vulnerability : privilege escalation/denial of service/information leak
> > Problem type : local/remote
> > Debian-specific: no
> > CVE Id(s) : CVE-2012-2121 CVE-2012-3552 CVE-2012-4461 CVE-2012-4508
> > CVE-2012-6537 CVE-2012-6539 CVE-2012-6540 CVE-2012-6542
> > CVE-2012-6544 CVE-2012-6545 CVE-2012-6546 CVE-2012-6548
> > CVE-2012-6549 CVE-2013-0349 CVE-2013-0914 CVE-2013-1767
> > CVE-2013-1773 CVE-2013-1774 CVE-2013-1792 CVE-2013-1796
> > CVE-2013-1798 CVE-2013-1826 CVE-2013-1860 CVE-2013-1928
> > CVE-2013-1929 CVE-2013-2015 CVE-2013-2634 CVE-2013-3222
> > CVE-2013-3223 CVE-2013-3224 CVE-2013-3225 CVE-2013-3228
> > CVE-2013-3229 CVE-2013-3231 CVE-2013-3234 CVE-2013-3235
> >
> > Several vulnerabilities have been discovered in the Linux kernel that may lead
> > to a denial of service, information leak or privilege escalation. The Common
> > Vulnerabilities and Exposures project identifies the following problems:
> >
> > CVE-2012-2121
> >
> > Benjamin Herrenschmidt and Jason Baron discovered issues with the IOMMU
> > mapping of memory slots used in KVM device assignment. Local users with
> > the ability to assign devices could cause a denial of service due to a
> > memory page leak.
> >
> > CVE-2012-3552
> >
> > Hafid Lin reported an issue in the IP networking subsystem. A remote user
> > can cause a denial of service (system crash) on servers running
> > applications that set options on sockets which are actively being
> > processed.
> >
> > CVE-2012-4461
> >
> > Jon Howell reported a denial of service issue in the KVM subsystem.
> > On systems that do not support the XSAVE feature, local users with
> > access to the /dev/kvm interface can cause a system crash.
> >
> > CVE-2012-4508
> >
> > Dmitry Monakhov and Theodore Ts'o reported a race condition in the ext4
> > filesystem. Local users could gain access to sensitive kernel memory.
> >
> > CVE-2012-6537
> >
> > Mathias Krause discovered information leak issues in the Transformation
> > user configuration interface. Local users with the CAP_NET_ADMIN capability
> > can gain access to sensitive kernel memory.
> >
> > CVE-2012-6539
> >
> > Mathias Krause discovered an issue in the networking subsystem. Local
> > users on 64-bit systems can gain access to sensitive kernel memory.
> >
> > CVE-2012-6540
> >
> > Mathias Krause discovered an issue in the Linux virtual server subsystem.
> > Local users can gain access to sensitive kernel memory. Note: this issue
> > does not affect Debian provided kernels, but may affect custom kernels
> > built from Debian's linux-source-2.6.32 package.
> >
> > CVE-2012-6542
> >
> > Mathias Krause discovered an issue in the LLC protocol support code.
> > Local users can gain access to sensitive kernel memory.
> >
> > CVE-2012-6544
> >
> > Mathias Krause discovered issues in the Bluetooth subsystem.
> > Local users can gain access to sensitive kernel memory.
> >
> > CVE-2012-6545
> >
> > Mathias Krause discovered issues in the Bluetooth RFCOMM protocol
> > support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2012-6546
> >
> > Mathias Krause discovered issues in the ATM networking support. Local
> > users can gain access to sensitive kernel memory.
> >
> > CVE-2012-6548
> >
> > Mathias Krause discovered an issue in the UDF file system support.
> > Local users can obtain access to sensitive kernel memory.
> >
> > CVE-2012-6549
> >
> > Mathias Krause discovered an issue in the isofs file system support.
> > Local users can obtain access to sensitive kernel memory.
> >
> > CVE-2013-0349
> >
> > Anderson Lizardo discovered an issue in the Bluetooth Human Interface
> > Device Protocol (HIDP) stack. Local users can obtain access to sensitive
> > kernel memory.
> >
> > CVE-2013-0914
> >
> > Emese Revfy discovered an issue in the signal implementation. Local
> > users maybe able to bypass the address space layout randomization (ASLR)
> > facility due to a leaking of information to child processes.
> >
> > CVE-2013-1767
> >
> > Greg Thelen reported an issue in the tmpfs virtual memory filesystem.
> > Local users with sufficient privilege to mount filesystems can cause
> > a denial of service or possibly elevated privileges due to a use-after-
> > free defect.
> >
> > CVE-2013-1773
> >
> > Alan Stern provided a fix for a defect in the UTF8->UTF16 string conversion
> > facility used by the VFAT filesystem. A local user could cause a buffer
> > overflow condition, resulting in a denial of service or potentially
> > elevated privileges.
> >
> > CVE-2013-1774
> >
> > Wolfgang Frisch provided a fix for a NULL-pointer dereference defect
> > in the driver for some serial USB devices from Inside Out Networks.
> > Local users with permission to access these devices can create a denial
> > of service (kernel oops) by causing the device to be removed while it is
> > in use.
> >
> > CVE-2013-1792
> >
> > Mateusz Guzik of Red Hat EMEA GSS SEG Team discovered a race condition
> > in the access key retention support in the kernel. A local user could
> > cause a denial of service (NULL pointer dereference).
> >
> > CVE-2013-1796
> >
> > Andrew Honig of Google reported an issue in the KVM subsystem. A user in
> > a guest operating system could corrupt kernel memory, resulting in a
> > denial of service.
> >
> > CVE-2013-1798
> >
> > Andrew Honig of Google reported an issue in the KVM subsystem. A user in
> > a guest operating system could cause a denial of service due to a use-
> > after-free defect.
> >
> > CVE-2013-1826
> >
> > Mathias Krause discovered an issue in the Transformation (XFRM) user
> > configuration interface of the networking stack. A user with the
> > CAP_NET_ADMIN capability maybe able to gain elevated privileges.
> >
> > CVE-2013-1860
> >
> > Oliver Neukum discovered an issue in the USB CDC WCM Device Management
> > driver. Local users with the ability to attach devices can cause a
> > denial of service (kernel crash) or potentially gain elevated privileges.
> >
> > CVE-2013-1928
> >
> > Kees Cook provided a fix for an information leak in the
> > VIDEO_SET_SPU_PALETTE ioctl for 32-bit applications running on a 64-bit
> > kernel. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-1929
> >
> > Oded Horovitz and Brad Spengler reported an issue in the device driver for
> > Broadcom Tigon3 based gigabit Ethernet. Users with the ability to attach
> > untrusted devices can create an overflow condition, resulting in a denial
> > of service or elevated privileges.
> >
> > CVE-2013-2015
> >
> > Theodore Ts'o provided a fix for an issue in the ext4 filesystem. Local
> > users with the ability to mount a specially crafted filesystem can cause
> > a denial of service (infinite loop).
> >
> > CVE-2013-2634
> >
> > Mathias Krause discovered a few issues in the Data Center Bridging (DCB)
> > netlink interface. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3222
> >
> > Mathias Krauss discovered an issue in the Asynchronous Transfer Mode (ATM)
> > protocol support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3223
> >
> > Mathias Krauss discovered an issue in the Amateur Radio AX.25 protocol
> > support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3224
> >
> > Mathias Krauss discovered an issue in the Bluetooth subsystem. Local users
> > can gain access to sensitive kernel memory.
> >
> > CVE-2013-3225
> >
> > Mathias Krauss discovered an issue in the Bluetooth RFCOMM protocol
> > support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3228
> >
> > Mathias Krauss discovered an issue in the IrDA (infrared) subsystem
> > support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3229
> >
> > Mathias Krauss discovered an issue in the IUCV support on s390 systems.
> > Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3231
> >
> > Mathias Krauss discovered an issue in the ANSI/IEEE 802.2 LLC type 2
> > protocol support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3234
> >
> > Mathias Krauss discovered an issue in the Amateur Radio X.25 PLP (Rose)
> > protocol support. Local users can gain access to sensitive kernel memory.
> >
> > CVE-2013-3235
> >
> > Mathias Krauss discovered an issue in the Transparent Inter Process
> > Communication (TIPC) protocol support. Local users can gain access to
> > sensitive kernel memory.
> >
> > For the oldstable distribution (squeeze), this problem has been fixed in
> > version 2.6.32-48squeeze3.
> >
> > The following matrix lists additional source packages that were rebuilt for
> > compatibility with or to take advantage of this update:
> >
> > Debian 6.0 (squeeze)
> > user-mode-linux 2.6.32-1um-4+48squeeze3
> >
> > We recommend that you upgrade your linux-2.6 and user-mode-linux packages.
> >
> > Note: Debian carefully tracks all known security issues across every
> > linux kernel package in all releases under active security support.
> > However, given the high frequency at which low-severity security
> > issues are discovered in the kernel and the resource requirements of
> > doing an update, updates for lower priority issues will normally not
> > be released for all kernels at the same time. Rather, they will be
> > released in a staggered or "leap-frog" fashion.
> >
> > Further information about Debian Security Advisories, how to apply
> > these updates to your system and frequently asked questions can be
> > found at: http://www.debian.org/security/
> >
> > Mailing list: debian-security-announce@lists.debian.org
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> >
> > --
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> > Archive: http://lists.debian.org/20130514191429.GA22977@dannf.org
> >
>
> --
> Jon Marshall
> Workshop IT: www.workshopit.co.uk
> e:jon@workshopit.co.uk t:020 7183 0498
--
Jon Marshall
Workshop IT: www.workshopit.co.uk
e:jon@workshopit.co.uk t:020 7183 0498
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