CVE-2017-2620

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.

Categories

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.54% Top 20%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: QEMU Qemu:
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2017-0329.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0334.html third party advisory vendor advisory
http://www.securitytracker.com/id/1037870 vdb entry third party advisory
http://rhn.redhat.com/errata/RHSA-2017-0328.html third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing list
http://rhn.redhat.com/errata/RHSA-2017-0333.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0351.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0454.html third party advisory vendor advisory
https://xenbits.xen.org/xsa/advisory-209.html third party advisory
http://rhn.redhat.com/errata/RHSA-2017-0331.html third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620 issue tracking third party advisory
http://www.openwall.com/lists/oss-security/2017/02/21/1 third party advisory mailing list
http://rhn.redhat.com/errata/RHSA-2017-0350.html third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html third party advisory mailing list
http://rhn.redhat.com/errata/RHSA-2017-0396.html third party advisory vendor advisory
https://security.gentoo.org/glsa/201704-01 third party advisory vendor advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html mailing list third party advisory patch
http://rhn.redhat.com/errata/RHSA-2017-0352.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0330.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0332.html third party advisory vendor advisory
http://www.securityfocus.com/bid/96378 vdb entry third party advisory
https://support.citrix.com/article/CTX220771 third party advisory
https://security.gentoo.org/glsa/201703-07 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-2620?
CVE-2017-2620 has been scored as a medium severity vulnerability.
How to fix CVE-2017-2620?
To fix CVE-2017-2620, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-2620 being actively exploited in the wild?
It is possible that CVE-2017-2620 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-2620?
CVE-2017-2620 affects QEMU Qemu:.
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