Critical severity · published Jul 27, 2018
CVE-2017-2620
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue
9.9
CVSS
3.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.3; 7.4; 7.5 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
OP
Openstack · Redhat
5.0; 6.0; 7.0; 8; 9; 10 · source: NVD
QE
Qemu · Qemu
before 2.8.0 · source: NVD
XE
Xen · Xen
through 4.7.1; 4.7.1; 4.7.1; 4.7.1; 4.7.1; 4.7.1; +2 more · source: NVD
XE
Xenserver · Citrix
6.0.2; 6.2.0; 6.5; 7.0; 7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-2620
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-2620
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0328.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0329.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0330.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0331.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0332.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0333.html
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