Debian DLA-1694-1 : qemu security update

high Nessus Plugin ID 122511
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Debian host is missing a security update.

Description

Several vulnerabilities were found in QEMU, a fast processor emulator :

CVE-2018-12617

The qmp_guest_file_read function (qga/commands-posix.c) is affected by an integer overflow and subsequent memory allocation failure. This weakness might be leveraged by remote attackers to cause denial of service (application crash).

CVE-2018-16872

The usb_mtp_get_object, usb_mtp_get_partial_object and usb_mtp_object_readdir functions (hw/usb/dev-mtp.c) are affected by a symlink attack. Remote attackers might leverage this vulnerability to perform information disclosure.

CVE-2019-6778

The tcp_emu function (slirp/tcp_subr.c) is affected by a heap buffer overflow caused by insufficient validation of available space in the sc_rcv->sb_data buffer. Remote attackers might leverage this flaw to cause denial of service, or any other unspecified impact.

For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u10.

We recommend that you upgrade your qemu packages.

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

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html

https://packages.debian.org/source/jessie/qemu

Plugin Details

Severity: High

ID: 122511

File Name: debian_DLA-1694.nasl

Version: 1.6

Type: local

Agent: unix

Published: 3/1/2019

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-6778

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:qemu, p-cpe:/a:debian:debian_linux:qemu-guest-agent, p-cpe:/a:debian:debian_linux:qemu-kvm, p-cpe:/a:debian:debian_linux:qemu-system, p-cpe:/a:debian:debian_linux:qemu-system-arm, p-cpe:/a:debian:debian_linux:qemu-system-common, p-cpe:/a:debian:debian_linux:qemu-system-mips, p-cpe:/a:debian:debian_linux:qemu-system-misc, p-cpe:/a:debian:debian_linux:qemu-system-ppc, p-cpe:/a:debian:debian_linux:qemu-system-sparc, p-cpe:/a:debian:debian_linux:qemu-system-x86, p-cpe:/a:debian:debian_linux:qemu-user, p-cpe:/a:debian:debian_linux:qemu-user-binfmt, p-cpe:/a:debian:debian_linux:qemu-user-static, p-cpe:/a:debian:debian_linux:qemu-utils, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/28/2019

Vulnerability Publication Date: 6/21/2018

Reference Information

CVE: CVE-2018-12617, CVE-2018-16872, CVE-2019-6778