Vulnerability CVE-2017-2615


Published: 2018-07-02   Modified: 2018-07-03

Description:
Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.

Type:

CWE-787

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
10/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
XEN -> XEN 
Redhat -> Openstack 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux workstation 
QEMU -> QEMU 
Debian -> Debian linux 
Citrix -> Xenserver 

 References:
http://rhn.redhat.com/errata/RHSA-2017-0309.html
http://rhn.redhat.com/errata/RHSA-2017-0328.html
http://rhn.redhat.com/errata/RHSA-2017-0329.html
http://rhn.redhat.com/errata/RHSA-2017-0330.html
http://rhn.redhat.com/errata/RHSA-2017-0331.html
http://rhn.redhat.com/errata/RHSA-2017-0332.html
http://rhn.redhat.com/errata/RHSA-2017-0333.html
http://rhn.redhat.com/errata/RHSA-2017-0334.html
http://rhn.redhat.com/errata/RHSA-2017-0344.html
http://rhn.redhat.com/errata/RHSA-2017-0350.html
http://rhn.redhat.com/errata/RHSA-2017-0396.html
http://rhn.redhat.com/errata/RHSA-2017-0454.html
http://www.openwall.com/lists/oss-security/2017/02/01/6
http://www.securityfocus.com/bid/95990
http://www.securitytracker.com/id/1037804
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2615
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg00015.html
https://security.gentoo.org/glsa/201702-27
https://security.gentoo.org/glsa/201702-28
https://support.citrix.com/article/CTX220771

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