ESB-2017.2213 - [SUSE] xen: Multiple vulnerabilities 2017-09-05

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2213
               SUSE Security Update: Security update for xen
                             5 September 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:          xen
Publisher:        SUSE
Operating System: SUSE
Impact/Access:    Increased Privileges     -- Existing Account      
                  Denial of Service        -- Remote/Unauthenticated
                  Access Confidential Data -- Existing Account      
Resolution:       Patch/Upgrade
CVE Names:        CVE-2017-12855 CVE-2017-12137 CVE-2017-12135
                  CVE-2017-11434 CVE-2017-11334 CVE-2017-10664

Reference:        ESB-2017.2203

- --------------------------BEGIN INCLUDED TEXT--------------------

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:2339-1
Rating:             important
References:         #1046637 #1048920 #1049578 #1051787 #1051788 
                    #1052686 
Cross-References:   CVE-2017-10664 CVE-2017-11334 CVE-2017-11434
                    CVE-2017-12135 CVE-2017-12137 CVE-2017-12855
                   
Affected Products:
                    SUSE Linux Enterprise Server 11-SP3-LTSS
                    SUSE Linux Enterprise Point of Sale 11-SP3
                    SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________

   An update that fixes 6 vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to
     potentially leaking sensitive information (XSA-230, bsc#1052686).
   - CVE-2017-12135: Unbounded recursion in grant table code allowed a
     malicious guest to crash the host or potentially escalate
     privileges/leak information (XSA-226, bsc#1051787).
   - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for
     privilege escalation (XSA-227, bsc#1051788).
   - CVE-2017-11334: The address_space_write_continue function in exec.c
     allowed local guest OS privileged users to cause a denial of service
     (out-of-bounds access and guest instance crash) by leveraging use of
     qemu_map_ram_ptr to access guest ram block area (bsc#1048920).
   - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local
     guest OS users to cause a denial of service (out-of-bounds read) via a
     crafted DHCP
     options string (bsc#1049578).
   - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote
     attackers to cause a denial of service (daemon crash) by disconnecting
     during a server-to-client reply attempt (bsc#1046637).


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 11-SP3-LTSS:

      zypper in -t patch slessp3-xen-13259=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-xen-13259=1

   - SUSE Linux Enterprise Debuginfo 11-SP3:

      zypper in -t patch dbgsp3-xen-13259=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):

      xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.5.1
      xen-libs-4.2.5_21-45.5.1
      xen-tools-domU-4.2.5_21-45.5.1

   - SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):

      xen-4.2.5_21-45.5.1
      xen-doc-html-4.2.5_21-45.5.1
      xen-doc-pdf-4.2.5_21-45.5.1
      xen-libs-32bit-4.2.5_21-45.5.1
      xen-tools-4.2.5_21-45.5.1

   - SUSE Linux Enterprise Server 11-SP3-LTSS (i586):

      xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.5.1

   - SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

      xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.5.1
      xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.5.1
      xen-libs-4.2.5_21-45.5.1
      xen-tools-domU-4.2.5_21-45.5.1

   - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):

      xen-debuginfo-4.2.5_21-45.5.1
      xen-debugsource-4.2.5_21-45.5.1


References:

   https://www.suse.com/security/cve/CVE-2017-10664.html
   https://www.suse.com/security/cve/CVE-2017-11334.html
   https://www.suse.com/security/cve/CVE-2017-11434.html
   https://www.suse.com/security/cve/CVE-2017-12135.html
   https://www.suse.com/security/cve/CVE-2017-12137.html
   https://www.suse.com/security/cve/CVE-2017-12855.html
   https://bugzilla.suse.com/1046637
   https://bugzilla.suse.com/1048920
   https://bugzilla.suse.com/1049578
   https://bugzilla.suse.com/1051787
   https://bugzilla.suse.com/1051788
   https://bugzilla.suse.com/1052686

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQIVAwUBWa4AWYx+lLeg9Ub1AQjw7A//SVWM4wwBe5hoEISAwercKzLzRpffmyDX
dHEgeBPABRJp5ludDNRUMKUD5ABjz8V14CGG/RlcXUP47Gyszw/fOuLbF7MgD7Mw
rOcOOolXoFnR20F3vbKPak0hgXIoe8u2iCUHYFQbVpzSUf7/mlJOVUGBXVAtVvbI
wwD0ExKluuci3NZVbgm/hk06wa3ccQegrudw63y1L9C3Jf9/mt7FIA093weYfEVG
5qmPzHM1zxXa+77oqGiq+ZZhUlPzcQG7HhPv1siC641ae+41onUCk/AKhtjYd/Jp
mzuRydRuDsFOq73baOhZdOyOZh07GxrdCjvlWNguaQtwqLkcSEHvVOnbrbWctCqz
QDHZvCXNK7dAYQu3+J2a2eP6c15wTsBwkVWMYPN9iR4tT0+3pcfB8NYga0JoS6R2
oKDT541thkSk6W8casA9gekLzvWAtPXp49d5ti8H07HvZvvIrBvmuM0pgNv3oKlz
nTCjAT+zVvw9ZkpXF0uoGivVzZRnFc7mJemZxlN89eB25aKYI2UX4UgO4R48g4rA
F73Nf/AxyWMHLZR7r9tWBsH+TegC5THm4WmX1C74hQyoGlUUcZkcxgfKEdb06qUz
y3ksBtuM8jHYzLGgBjyETJwwRJNBs2V0dHs9RB0c5hQcp+IvSxPbqPCnRAio0Mjd
c9g6z/9gIU8=
=CHXS
-----END PGP SIGNATURE-----

« Back to bulletins