SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2018:3927-1)

critical Nessus Plugin ID 120171
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

This update for qemu fixes the following issues :

Security issues fixed :

CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS (bsc#1110910).

CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread (bsc#1106222).

CVE-2018-16847: Fixed an OOB heap buffer r/w access issue that was found in the NVM Express Controller emulation in QEMU. It could occur in nvme_cmb_ops routines in nvme device. A guest user/process could use this flaw to crash the QEMU process resulting in DoS or potentially run arbitrary code with privileges of the QEMU process (bsc#1114529).

CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used (bsc#1111006).

CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used (bsc#1111010).

CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
(bsc#1111013)

CVE-2018-18849: Fixed an out of bounds memory access issue that was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin. It could occur during migration if the 'msg_len' field has an invalid value. A user/process could use this flaw to crash the Qemu process resulting in DoS (bsc#1114422).

Non-security issues fixed: Fix slowness in arm32 emulation (bsc#1112499).

In order to improve spectre mitigation for s390x, add a new feature in the QEMU cpu model to provide the etoken cpu feature for guests (bsc#1107489).

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 the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Server Applications 15:zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2018-2794=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2018-2794=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2794=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1106222

https://bugzilla.suse.com/show_bug.cgi?id=1107489

https://bugzilla.suse.com/show_bug.cgi?id=1110910

https://bugzilla.suse.com/show_bug.cgi?id=1111006

https://bugzilla.suse.com/show_bug.cgi?id=1111010

https://bugzilla.suse.com/show_bug.cgi?id=1111013

https://bugzilla.suse.com/show_bug.cgi?id=1112499

https://bugzilla.suse.com/show_bug.cgi?id=1114422

https://bugzilla.suse.com/show_bug.cgi?id=1114529

https://www.suse.com/security/cve/CVE-2018-10839/

https://www.suse.com/security/cve/CVE-2018-15746/

https://www.suse.com/security/cve/CVE-2018-16847/

https://www.suse.com/security/cve/CVE-2018-17958/

https://www.suse.com/security/cve/CVE-2018-17962/

https://www.suse.com/security/cve/CVE-2018-17963/

https://www.suse.com/security/cve/CVE-2018-18849/

http://www.nessus.org/u?5557eaad

Plugin Details

Severity: Critical

ID: 120171

File Name: suse_SU-2018-3927-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 1/2/2019

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: 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-dmg, p-cpe:/a:novell:suse_linux:qemu-block-dmg-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-debuginfo, p-cpe:/a:novell:suse_linux:qemu-debugsource, p-cpe:/a:novell:suse_linux:qemu-extra, p-cpe:/a:novell:suse_linux:qemu-extra-debuginfo, 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-linux-user, p-cpe:/a:novell:suse_linux:qemu-linux-user-debuginfo, p-cpe:/a:novell:suse_linux:qemu-linux-user-debugsource, 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, p-cpe:/a:novell:suse_linux:qemu-x86-debuginfo, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/27/2018

Vulnerability Publication Date: 8/29/2018

Reference Information

CVE: CVE-2018-10839, CVE-2018-15746, CVE-2018-16847, CVE-2018-17958, CVE-2018-17962, CVE-2018-17963, CVE-2018-18849