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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| QEMU | Qemu: | 2.8 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 1:2.8+dfsg-3 | — |
| Debian 14 | xen | 4.4.0-1 | — |
| Debian 13 | qemu | 1:2.8+dfsg-3 | — |
| Debian 13 | xen | 4.4.0-1 | — |
| Debian 12 | qemu | 1:2.8+dfsg-3 | — |
| Debian 12 | xen | 4.4.0-1 | — |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u7 | DLA-1497-1 |
| Debian 7 | qemu +1 | 1.1.2+dfsg-6+deb7u20 | DLA-845-1, DLA-842-1 |
| Debian 7 | xen | 4.1.6.lts1-12 | DLA-1270-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.11 | USN-3261-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.33 | USN-3261-1 |
| Ubuntu 14.04 LTS | xen | 4.4.2-0ubuntu0.14.04.11 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | qemu-img +3 | 10:1.5.3-126.el7_3.5 | RHSA-2017:0396 |
| RHEL 7 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0350 |
| RHEL 6 | qemu-img +6 | 2:0.12.1.2-2.491.el6_8.7 | RHSA-2017:0352, RHSA-2017:0351 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | kvm +4 | 83-277.el5_11 | RHSA-2017:0454 |
| Red Hat OpenStack 10 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0328 |
| Red Hat OpenStack 9 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0329 |
| Red Hat OpenStack 8 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0330 |
| Red Hat OpenStack 7 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0331 |
| Red Hat OpenStack 6 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0332 |
| Red Hat OpenStack 5 | qemu-img-rhev +2 | 2:0.12.1.2-2.491.el6_8.7 | RHSA-2017:0334, RHSA-2017:0333 |
| Red Hat OpenStack 5 | qemu-kvm-tools-rhev +1 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0333 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | qemu | 2.6.2-41.9.1 | SUSE-SU-2017:0625-1 |
| SLES 12 SP2 | xen | 4.7.1_06-31.1 | SUSE-SU-2017:0571-1 |
| SLES 12 SP1 | qemu | 2.3.1-32.11 | SUSE-SU-2017:1241-1 |
| SLES 12 SP1 | xen | 4.5.5_06-22.11.2 | SUSE-SU-2017:0570-1 |
| SLES 12 | qemu | 2.0.2-48.31.1 | SUSE-SU-2017:0661-1 |
| SLES 12 | xen | 4.4.4_14-22.33.1 | SUSE-SU-2017:0582-1 |
| SLES 11 SP4 | kvm | 1.4.2-59.1 | SUSE-SU-2017:1135-1 |
| SLES 11 SP4 | xen | 4.4.4_14-51.1 | SUSE-SU-2017:0647-1 |
| SLES 11 SP3 | kvm | 1.4.2-53.11.1 | SUSE-SU-2017:3084-1 |
| SLES 11 SP3 | xen | 4.2.5_21-35.1 | SUSE-SU-2017:0718-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | qemu | 2.6.2-41.9.1 | SUSE-SU-2017:0625-1 |
| SLES for SAP 12 SP2 | xen | 4.7.1_06-31.1 | SUSE-SU-2017:0571-1 |
| SLES for SAP 12 SP1 | qemu | 2.3.1-32.11 | SUSE-SU-2017:1241-1 |
| SLES for SAP 12 SP1 | xen | 4.5.5_06-22.11.2 | SUSE-SU-2017:0570-1 |
| SLES for SAP 12 | qemu | 2.0.2-48.31.1 | SUSE-SU-2017:0661-1 |
| SLES for SAP 12 | xen | 4.4.4_14-22.33.1 | SUSE-SU-2017:0582-1 |
| SLES for SAP 11 SP4 | kvm | 1.4.2-59.1 | SUSE-SU-2017:1135-1 |
| SLES for SAP 11 SP4 | xen | 4.4.4_14-51.1 | SUSE-SU-2017:0647-1 |
| SUSE OpenStack Cloud 5 | xen | 4.2.5_21-35.1 | SUSE-SU-2017:0718-1 |
| SUSE Manager Proxy 2.1 | xen | 4.2.5_21-35.1 | SUSE-SU-2017:0718-1 |
| SUSE Manager 2.1 | xen | 4.2.5_21-35.1 | SUSE-SU-2017:0718-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kvm | 1.4.2-53.11.1 | SUSE-SU-2017:3084-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | xen | 4.2.5_21-35.1 | SUSE-SU-2017:0718-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 6.1.0-32.1 | openSUSE-SU-2024:11287-1 |
| openSUSE Tumbleweed | xen | 4.15.1_01-1.2 | openSUSE-SU-2024:11520-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qemu | 2.8.1-r1 | — |
| Alpine v3.24 | xen | 4.7.1-r5 | — |
| Alpine v3.23 | qemu | 2.8.1-r1 | — |
| Alpine v3.23 | xen | 4.7.1-r5 | — |
| Alpine v3.22 | qemu | 2.8.1-r1 | — |
| Alpine v3.22 | xen | 4.7.1-r5 | — |
| Alpine v3.21 | qemu | 2.8.1-r1 | — |
| Alpine v3.21 | xen | 4.7.1-r5 | — |
| Alpine v3.20 | qemu | 2.8.1-r1 | — |
| Alpine v3.20 | xen | 4.7.1-r5 | — |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qemu | 2.8.1-r1 | — |
| Alpine v3.19 | xen | 4.7.1-r5 | — |
| Alpine v3.18 | qemu | 2.8.1-r1 | — |
| Alpine v3.18 | xen | 4.7.1-r5 | — |
| Alpine v3.17 | qemu | 2.8.1-r1 | — |
| Alpine v3.17 | xen | 4.7.1-r5 | — |
| Alpine v3.16 | qemu | 2.8.1-r1 | — |
| Alpine v3.16 | xen | 4.7.1-r5 | — |
| Alpine v3.15 | qemu | 2.8.1-r1 | — |
| Alpine v3.15 | xen | 4.7.1-r5 | — |
| Alpine v3.14 | qemu | 2.8.1-r1 | — |
| Alpine v3.14 | xen | 4.7.1-r5 | — |
| Alpine v3.13 | qemu | 2.8.1-r1 | — |
| Alpine v3.13 | xen | 4.7.1-r5 | — |
| Alpine v3.12 | qemu | 2.8.1-r1 | — |
| Alpine v3.12 | xen | 4.7.1-r5 | — |
| Alpine v3.11 | qemu | 2.8.1-r1 | — |
| Alpine v3.11 | xen | 4.7.1-r5 | — |
| Alpine v3.10 | qemu | 2.8.1-r1 | — |
| Alpine v3.10 | xen | 4.7.1-r5 | — |
| Alpine v3.9 | qemu | 2.8.1-r1 | — |
| Alpine v3.9 | xen | 4.7.1-r5 | — |
| Alpine v3.8 | qemu | 2.8.1-r1 | — |
| Alpine v3.8 | xen | 4.7.1-r5 | — |
| Alpine v3.7 | qemu | 2.8.1-r1 | — |
| Alpine v3.7 | xen | 4.7.1-r5 | — |
| Alpine v3.6 | qemu | 2.8.1-r1 | — |
| Alpine v3.6 | xen | 4.7.1-r5 | — |
| Alpine v3.5 | qemu | 2.8.1.1-r0 | — |
| Alpine v3.5 | xen | 4.7.1-r5 | — |
| Alpine v3.4 | xen | 4.6.3-r10 | — |
| Alpine v3.3 | xen | 4.6.3-r8 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu-img +3 | 10:1.5.3-126.el7_3.5 | ELSA-2017-0396 |
Advisories 30
- RHSA-2017:0454 Red Hat Security Advisory: kvm security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0396 Red Hat Security Advisory: qemu-kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0352 Red Hat Security Advisory: qemu-kvm security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0351 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0350 Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0333 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0334 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0331 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0332 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0330 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0329 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0328 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- DLA-842-1 qemu-kvm - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-845-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1497-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1270-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3261-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:0661-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0582-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0570-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0647-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0718-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0625-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0571-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1241-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3084-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1135-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11287-1 qemu-6.1.0-32.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- openSUSE-SU-2024:11520-1 xen-4.15.1_01-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2017-0396 Important: qemu-kvm security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 2, 2017
References
- RHSA-2017:0329 vendor-advisory
- RHSA-2017:0334 vendor-advisory
- 1037870 vdb-entry
- RHSA-2017:0328 vendor-advisory
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update mailing-list
- RHSA-2017:0333 vendor-advisory
- RHSA-2017:0351 vendor-advisory
- RHSA-2017:0454 vendor-advisory
- https://xenbits.xen.org/xsa/advisory-209.html
- RHSA-2017:0331 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620
- [oss-security] 20170221 CVE-2017-2620 Qemu: display: cirrus: out-of-bounds access issue while in cirrus_bitblt_cputovideo mailing-list
- RHSA-2017:0350 vendor-advisory
- [debian-lts-announce] 20180206 [SECURITY] [DLA 1270-1] xen security update mailing-list
- RHSA-2017:0396 vendor-advisory
- GLSA-201704-01 vendor-advisory
- [qemu-devel] 20170221 [PATCH] cirrus: add blit_is_unsafe call to cirrus_bitblt_cputovideo (CVE-2017-2620) mailing-list
- RHSA-2017:0352 vendor-advisory
- RHSA-2017:0330 vendor-advisory
- RHSA-2017:0332 vendor-advisory
- 96378 vdb-entry
- https://support.citrix.com/article/CTX220771
- GLSA-201703-07 vendor-advisory