Debian DSA-3361-1 : qemu - security update

Critical Nessus Plugin ID 86023

Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities were discovered in qemu, a fast processor emulator.

- CVE-2015-5278 Qinghao Tang of QIHU 360 Inc. discovered an infinite loop issue in the NE2000 NIC emulation. A privileged guest user could use this flaw to mount a denial of service (QEMU process crash).

- CVE-2015-5279 Qinghao Tang of QIHU 360 Inc. discovered a heap buffer overflow flaw in the NE2000 NIC emulation. A privileged guest user could use this flaw to mount a denial of service (QEMU process crash), or potentially to execute arbitrary code on the host with the privileges of the hosting QEMU process.

- CVE-2015-6815 Qinghao Tang of QIHU 360 Inc. discovered an infinite loop issue in the e1000 NIC emulation. A privileged guest user could use this flaw to mount a denial of service (QEMU process crash).

- CVE-2015-6855 Qinghao Tang of QIHU 360 Inc. discovered a flaw in the IDE subsystem in QEMU occurring while executing IDE's WIN_READ_NATIVE_MAX command to determine the maximum size of a drive. A privileged guest user could use this flaw to mount a denial of service (QEMU process crash).

Solution

Upgrade the qemu packages.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.1.2+dfsg-6+deb7u11.

For the stable distribution (jessie), these problems have been fixed in version 1:2.1+dfsg-12+deb8u4.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798101

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799073

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799074

https://security-tracker.debian.org/tracker/CVE-2015-5278

https://security-tracker.debian.org/tracker/CVE-2015-5279

https://security-tracker.debian.org/tracker/CVE-2015-6815

https://security-tracker.debian.org/tracker/CVE-2015-6855

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

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

https://www.debian.org/security/2015/dsa-3361

Plugin Details

Severity: Critical

ID: 86023

File Name: debian_DSA-3361.nasl

Version: 2.7

Type: local

Agent: unix

Published: 2015/09/21

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:qemu, cpe:/o:debian:debian_linux:7.0, cpe:/o:debian:debian_linux:8.0

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/09/18

Reference Information

CVE: CVE-2015-5278, CVE-2015-5279, CVE-2015-6815, CVE-2015-6855

DSA: 3361