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AUSCERT External Security Bulletin Redistribution
ESB-2017.2871
SUSE Security Update: Security update for kvm
13 November 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: kvm
Publisher: SUSE
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-15289 CVE-2017-15038 CVE-2017-14167
CVE-2017-13672 CVE-2017-11434 CVE-2017-11334
CVE-2017-10806 CVE-2017-10664 CVE-2017-9503
CVE-2017-9375 CVE-2017-9373 CVE-2017-9330
CVE-2017-8309 CVE-2017-8086 CVE-2017-7980
CVE-2017-7718 CVE-2017-7493 CVE-2017-7471
CVE-2017-6505 CVE-2017-5973 CVE-2017-5579
CVE-2016-9603 CVE-2016-9602
Reference: ESB-2017.2853
ESB-2017.2486
ESB-2017.2322
ESB-2017.0627
ESB-2017.0533
Original Bulletin:
https://www.suse.com/support/update/announcement/2017/suse-su-20172963-1.html
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SUSE Security Update: Security update for kvm
______________________________________________________________________________
Announcement ID: SUSE-SU-2017:2963-1
Rating: important
References: #1020427 #1021741 #1025109 #1028184 #1028656
#1030624 #1031051 #1034044 #1034866 #1034908
#1035406 #1035950 #1037242 #1038396 #1039495
#1042159 #1042800 #1042801 #1043296 #1045035
#1046636 #1047674 #1048902 #1049381 #1049785
#1056334 #1057585 #1062069 #1063122
Cross-References: CVE-2016-9602 CVE-2016-9603 CVE-2017-10664
CVE-2017-10806 CVE-2017-11334 CVE-2017-11434
CVE-2017-13672 CVE-2017-14167 CVE-2017-15038
CVE-2017-15289 CVE-2017-5579 CVE-2017-5973
CVE-2017-6505 CVE-2017-7471 CVE-2017-7493
CVE-2017-7718 CVE-2017-7980 CVE-2017-8086
CVE-2017-8309 CVE-2017-9330 CVE-2017-9373
CVE-2017-9375 CVE-2017-9503
Affected Products:
SUSE Linux Enterprise Server 11-SP4
______________________________________________________________________________
An update that solves 23 vulnerabilities and has 6 fixes is
now available.
Description:
This update for kvm fixes several issues.
These security issues were fixed:
- CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File
System(9pfs) support was vulnerable to an improper link following issue
which allowed a privileged user inside guest to access host file system
beyond the shared folder and potentially escalating their privileges on
a host (bsc#1020427)
- CVE-2016-9603: A privileged user within the guest VM could have caused a
heap overflow in the device model process, potentially escalating their
privileges to that of the device model process (bsc#1028656)
- 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#1046636)
- CVE-2017-10806: Stack-based buffer overflow allowed local guest OS users
to cause a denial of service (QEMU process crash) via vectors related to
logging debug messages (bsc#1047674).
- CVE-2017-11334: The address_space_write_continue function 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#1048902).
- 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#1049381)
- CVE-2017-13672: The VGA display emulator support allowed local guest OS
privileged users to cause a denial of service (out-of-bounds read and
QEMU process crash) via vectors involving display update (bsc#1056334).
- CVE-2017-14167: Integer overflow in the load_multiboot function allowed
local guest OS users to execute arbitrary code on the host via crafted
multiboot header address values, which trigger an out-of-bounds write
(bsc#1057585).
- CVE-2017-15038: Race condition in the v9fs_xattrwalk function local
guest OS users to obtain sensitive information from host heap memory via
vectors related to reading extended attributes (bsc#1062069).
- CVE-2017-15289: The mode4and5 write functions allowed local OS guest
privileged users to cause a denial of service (out-of-bounds write
access and Qemu process crash) via vectors related to dst calculation
(bsc#1063122).
- CVE-2017-5579: The 16550A UART serial device emulation support was
vulnerable to a memory leakage issue allowing a privileged user to cause
a DoS and/or potentially crash the Qemu process on the host (bsc#1021741)
- CVE-2017-5973: A infinite loop while doing control transfer in
xhci_kick_epctx allowed privileged user inside the guest to crash the
host process resulting in DoS (bsc#1025109)
- CVE-2017-6505: The ohci_service_ed_list function allowed local guest OS
users to cause a denial of service (infinite loop) via vectors involving
the number of link endpoint list descriptors (bsc#1028184)
- CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File
System(9pfs) support was vulnerable to an improper access control issue
which allowed a privileged user inside guest to access host file system
beyond the shared folder and potentially escalating their privileges on
a host (bsc#1034866)
- CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File
System(9pfs) support, was vulnerable to an improper access control
issue. It could occur while accessing virtfs metadata files in
mapped-file security mode. A guest user could have used this flaw to
escalate their privileges inside guest (bsc#1039495)
- CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS
privileged users to cause a denial of service (out-of-bounds read and
QEMU process crash) via vectors related to copying VGA data via the
cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions
(bsc#1034908)
- CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD
54xx VGA Emulator support allowed privileged user inside guest to use
this flaw to crash the Qemu process resulting in DoS or potentially
execute arbitrary code on a host with privileges of Qemu process on the
host (bsc#1035406)
- CVE-2017-8086: A memory leak in the v9fs_list_xattr function in
hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a
denial of service (memory consumption) via vectors involving the
orig_value variable (bsc#1035950)
- CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers
to cause a denial of service (memory consumption) by repeatedly starting
and stopping audio capture (bsc#1037242)
- CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users
to cause a denial of service (infinite loop) by leveraging an incorrect
return value (bsc#1042159)
- CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host
memory leakage issue, which allowed a privileged user inside guest to
leak host memory resulting in DoS (bsc#1042801)
- CVE-2017-9375: The USB xHCI controller emulator support was vulnerable
to an infinite recursive call loop issue, which allowed a privileged
user inside guest to crash the Qemu process resulting in DoS
(bsc#1042800)
- CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation
support was vulnerable to a null pointer dereference issue which allowed
a privileged user inside guest to crash the Qemu process on the host
resulting in DoS (bsc#1043296)
- Privilege escalation in TCG mode (bsc#1030624)
These non-security issues were fixed:
- bsc#1038396: Fixed 12 tempest tests
- bsc#1045035: Fixed regression introduced by previous virtfs security
fixes
- bsc#1034044: Prevent KVM guests stuck when waiting for sg_io() completion
- bsc#1031051: Prevent I/O errors when using pvmove with disk device=lun
- bsc#1049785: Make virsh dump output readable by crash
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-SP4:
zypper in -t patch slessp4-kvm-13342=1
To bring your system up-to-date, use "zypper patch".
Package List:
- SUSE Linux Enterprise Server 11-SP4 (i586 s390x x86_64):
kvm-1.4.2-60.3.1
References:
https://www.suse.com/security/cve/CVE-2016-9602.html
https://www.suse.com/security/cve/CVE-2016-9603.html
https://www.suse.com/security/cve/CVE-2017-10664.html
https://www.suse.com/security/cve/CVE-2017-10806.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-2017-13672.html
https://www.suse.com/security/cve/CVE-2017-14167.html
https://www.suse.com/security/cve/CVE-2017-15038.html
https://www.suse.com/security/cve/CVE-2017-15289.html
https://www.suse.com/security/cve/CVE-2017-5579.html
https://www.suse.com/security/cve/CVE-2017-5973.html
https://www.suse.com/security/cve/CVE-2017-6505.html
https://www.suse.com/security/cve/CVE-2017-7471.html
https://www.suse.com/security/cve/CVE-2017-7493.html
https://www.suse.com/security/cve/CVE-2017-7718.html
https://www.suse.com/security/cve/CVE-2017-7980.html
https://www.suse.com/security/cve/CVE-2017-8086.html
https://www.suse.com/security/cve/CVE-2017-8309.html
https://www.suse.com/security/cve/CVE-2017-9330.html
https://www.suse.com/security/cve/CVE-2017-9373.html
https://www.suse.com/security/cve/CVE-2017-9375.html
https://www.suse.com/security/cve/CVE-2017-9503.html
https://bugzilla.suse.com/1020427
https://bugzilla.suse.com/1021741
https://bugzilla.suse.com/1025109
https://bugzilla.suse.com/1028184
https://bugzilla.suse.com/1028656
https://bugzilla.suse.com/1030624
https://bugzilla.suse.com/1031051
https://bugzilla.suse.com/1034044
https://bugzilla.suse.com/1034866
https://bugzilla.suse.com/1034908
https://bugzilla.suse.com/1035406
https://bugzilla.suse.com/1035950
https://bugzilla.suse.com/1037242
https://bugzilla.suse.com/1038396
https://bugzilla.suse.com/1039495
https://bugzilla.suse.com/1042159
https://bugzilla.suse.com/1042800
https://bugzilla.suse.com/1042801
https://bugzilla.suse.com/1043296
https://bugzilla.suse.com/1045035
https://bugzilla.suse.com/1046636
https://bugzilla.suse.com/1047674
https://bugzilla.suse.com/1048902
https://bugzilla.suse.com/1049381
https://bugzilla.suse.com/1049785
https://bugzilla.suse.com/1056334
https://bugzilla.suse.com/1057585
https://bugzilla.suse.com/1062069
https://bugzilla.suse.com/1063122
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