SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:2924-1)

High Nessus Plugin ID 104376

Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for qemu to version 2.9.1 fixes several issues. It also announces that the qed storage format will be no longer supported in SLE 15 (fate#324200). These security issues were fixed :

- CVE-2017-15268: Qemu allowed remote attackers to cause a memory leak by triggering slow data-channel read operations, related to io/channel-websock.c (bsc#1062942)

- 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-2017-15038: 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-2017-10911: The make_response function in the Linux kernel allowed guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures (bsc#1057378)

- CVE-2017-12809: The IDE disk and CD/DVD-ROM Emulator support allowed local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive (bsc#1054724)

- 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-2017-13672: 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-2017-13711: Use-after-free vulnerability allowed attackers to cause a denial of service (QEMU instance crash) by leveraging failure to properly clear ifq_so from pending packets (bsc#1056291).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

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

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1810=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1810=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1054724

https://bugzilla.suse.com/show_bug.cgi?id=1055587

https://bugzilla.suse.com/show_bug.cgi?id=1056291

https://bugzilla.suse.com/show_bug.cgi?id=1056334

https://bugzilla.suse.com/show_bug.cgi?id=1057378

https://bugzilla.suse.com/show_bug.cgi?id=1057585

https://bugzilla.suse.com/show_bug.cgi?id=1057966

https://bugzilla.suse.com/show_bug.cgi?id=1062069

https://bugzilla.suse.com/show_bug.cgi?id=1062942

https://bugzilla.suse.com/show_bug.cgi?id=1063122

https://www.suse.com/security/cve/CVE-2017-10911/

https://www.suse.com/security/cve/CVE-2017-12809/

https://www.suse.com/security/cve/CVE-2017-13672/

https://www.suse.com/security/cve/CVE-2017-13711/

https://www.suse.com/security/cve/CVE-2017-14167/

https://www.suse.com/security/cve/CVE-2017-15038/

https://www.suse.com/security/cve/CVE-2017-15268/

https://www.suse.com/security/cve/CVE-2017-15289/

http://www.nessus.org/u?518a0b3f

Plugin Details

Severity: High

ID: 104376

File Name: suse_SU-2017-2924-1.nasl

Version: 3.7

Type: local

Agent: unix

Published: 2017/11/03

Updated: 2018/11/30

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:qemu, p-cpe:/a:novell:suse_linux:qemu-block-curl, p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo, p-cpe:/a:novell:suse_linux:qemu-block-iscsi, p-cpe:/a:novell:suse_linux:qemu-block-iscsi-debuginfo, p-cpe:/a:novell:suse_linux:qemu-block-rbd, p-cpe:/a:novell:suse_linux:qemu-block-rbd-debuginfo, p-cpe:/a:novell:suse_linux:qemu-block-ssh, p-cpe:/a:novell:suse_linux:qemu-block-ssh-debuginfo, p-cpe:/a:novell:suse_linux:qemu-debugsource, p-cpe:/a:novell:suse_linux:qemu-guest-agent, p-cpe:/a:novell:suse_linux:qemu-guest-agent-debuginfo, p-cpe:/a:novell:suse_linux:qemu-kvm, p-cpe:/a:novell:suse_linux:qemu-lang, p-cpe:/a:novell:suse_linux:qemu-s390, p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo, p-cpe:/a:novell:suse_linux:qemu-tools, p-cpe:/a:novell:suse_linux:qemu-tools-debuginfo, p-cpe:/a:novell:suse_linux:qemu-x86, cpe:/o:novell:suse_linux:12

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/11/02

Reference Information

CVE: CVE-2017-10911, CVE-2017-12809, CVE-2017-13672, CVE-2017-13711, CVE-2017-14167, CVE-2017-15038, CVE-2017-15268, CVE-2017-15289