CVE-2017-2620

Name: CVE-2017-2620
Creator: NVD / NIST
Published: 2018-07-27T19:29:00.33+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.49%

Last modified Jun 17, 2026

CVE-2017-2620 is a vulnerability of currently unknown severity. Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. EPSS estimates a 3.49% chance of exploitation in the next 30 days.

Description

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

Metrics

EPSS Probability

3.49%

87.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Qemu	Qemu	< 2.8.0	—
Citrix	Xenserver	6.0.2	—
Citrix	Xenserver	6.2.0	Sp1
Citrix	Xenserver	6.5	Sp1
Citrix	Xenserver	7.0	—
Citrix	Xenserver	7.1	—
Redhat	Openstack	5.0	—
Redhat	Openstack	6.0	—
Redhat	Openstack	7.0	—
Redhat	Openstack	8	—
Redhat	Openstack	9	—
Redhat	Openstack	10	—
Debian	Debian Linux	7.0	—
Redhat	Enterprise Linux Desktop	6.0	—
Redhat	Enterprise Linux Desktop	7.0	—
Redhat	Enterprise Linux Server	6.0	—
Redhat	Enterprise Linux Server	7.0	—
Redhat	Enterprise Linux Server Aus	7.3	—
Redhat	Enterprise Linux Server Aus	7.4	—
Redhat	Enterprise Linux Server Eus	7.3	—
Redhat	Enterprise Linux Server Eus	7.4	—
Redhat	Enterprise Linux Server Eus	7.5	—
Redhat	Enterprise Linux Workstation	6.0	—
Redhat	Enterprise Linux Workstation	7.0	—
Xen	Xen	<= 4.7.1	—
Xen	Xen	4.7.1	R1

References

http://rhn.redhat.com/errata/RHSA-2017-0328.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0329.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0330.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0331.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0332.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0333.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0334.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0350.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0351.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0352.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0396.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0454.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/21/1Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/96378Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037870Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00005.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.htmlPatch, Third Party Advisory
https://security.gentoo.org/glsa/201703-07Third Party Advisory
https://security.gentoo.org/glsa/201704-01Third Party Advisory
https://support.citrix.com/article/CTX220771Third Party Advisory
https://xenbits.xen.org/xsa/advisory-209.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0328.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0329.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0330.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0331.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0332.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0333.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0334.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0350.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0351.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0352.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0396.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0454.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/21/1Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/96378Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037870Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00005.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.htmlPatch, Third Party Advisory
https://security.gentoo.org/glsa/201703-07Third Party Advisory
https://security.gentoo.org/glsa/201704-01Third Party Advisory
https://support.citrix.com/article/CTX220771Third Party Advisory
https://xenbits.xen.org/xsa/advisory-209.htmlThird Party Advisory

Timeline

Published: Jul 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-2620?

How severe is CVE-2017-2620?

Severity scoring for CVE-2017-2620 is pending analysis. The EPSS model estimates a 3.49% probability of exploitation in the next 30 days.

How do I fix CVE-2017-2620?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2620?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST