Re: [SECURITY] [DSA 2668-1] linux-2.6 security update

2013-05-14 Thread Jon Marshall
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-2668-1secur...@debian.org
 http://www.debian.org/security/   Dann Frazier
 May 14, 2013http://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-

Re: [SECURITY] [DSA 2668-1] linux-2.6 security update

2013-05-14 Thread Jon Marshall
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-2668-1secur...@debian.org
  http://www.debian.org/security/   Dann Frazier
  May 14, 2013http://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