Debian Security Advisory DSA 4213-1 (qemu - security update)

Published: 2018-05-28 22:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
qemu on Debian Linux

Recommendations:
For the stable distribution (stretch), these problems have been fixed in version 1:2.8+dfsg-6+deb9u4. We recommend that you upgrade your qemu Linux Distribution Packages. For the detailed security status of qemu please refer to its security tracker page linked in the references.

Summary:
Several vulnerabilities were discovered in qemu, a fast processor emulator. CVE-2017-15038 Tuomas Tynkkynen discovered an information leak in 9pfs. CVE-2017-15119 Eric Blake discovered that the NBD server insufficiently restricts large option requests, resulting in denial of service. CVE-2017-15124 Daniel Berrange discovered that the integrated VNC server insufficiently restricted memory allocation, which could result in denial of service. CVE-2017-15268 A memory leak in websockets support may result in denial of service. CVE-2017-15289 Guoxiang Niu discovered an OOB write in the emulated Cirrus graphics adaptor which could result in denial of service. CVE-2017-16845 Cyrille Chatras discovered an information leak in PS/2 mouse and keyboard emulation which could be exploited during instance migration. CVE-2017-17381 Dengzhan Heyuandong Bijunhua and Liweichao discovered that an implementation error in the virtio vring implementation could result in denial of service. CVE-2017-18043 Eric Blake discovered an integer overflow in an internally used macro which could result in denial of service. CVE-2018-5683 Jiang Xin and Lin ZheCheng discovered an OOB memory access in the emulated VGA adaptor which could result in denial of service. CVE-2018-7550 Cyrille Chatras discovered that an OOB memory write when using multiboot could result in the execution of arbitrary code. This update also backports a number of mitigations against the Spectre v2 vulnerability affecting modern CPUs (CVE-2017-5715). For additional information please

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-15038
https://nvd.nist.gov/vuln/detail/CVE-2017-15119
https://nvd.nist.gov/vuln/detail/CVE-2017-15124
https://nvd.nist.gov/vuln/detail/CVE-2017-15268
https://nvd.nist.gov/vuln/detail/CVE-2017-15289
https://nvd.nist.gov/vuln/detail/CVE-2017-16845
https://nvd.nist.gov/vuln/detail/CVE-2017-17381
https://nvd.nist.gov/vuln/detail/CVE-2017-18043
https://nvd.nist.gov/vuln/detail/CVE-2017-5715
https://nvd.nist.gov/vuln/detail/CVE-2018-5683
https://nvd.nist.gov/vuln/detail/CVE-2018-7550

References:

https://www.debian.org/security/2018/dsa-4213.html
https://security-tracker.debian.org/tracker/qemu
https://www.qemu.org/2018/01/04/spectre/

Severity
High
CVSS Score
7.8
Published
2018-05-28
Modified
2019-03-18
Category
Debian Local Security Checks

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