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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 9.9 CRITICALCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 3.56% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787, CWE-125
- Affected
- qemu/qemu · citrix/xenserver · redhat/openstack · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux workstation · xen/xen
- Source
- secalert@redhat.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.