Description
Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| QEMU | QEMU | before 2.1.0 | — |
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 ↗Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.19 | USN-2745-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | xen | 4.5.2_02-4.1 | SUSE-SU-2015:2324-1 |
| SLES 12 | qemu | 2.0.2-48.19.1 | SUSE-SU-2016:1560-1 |
| SLES 12 | xen | 4.4.3_02-22.12.1 | SUSE-SU-2015:1908-1 |
| SLES 11 SP4 | kvm | 1.4.2-44.1 | SUSE-SU-2016:1785-1 |
| SLES 11 SP4 | xen | 4.4.3_02-26.2 | SUSE-SU-2015:1894-1 |
| SLES 11 SP3 | kvm | 1.4.2-46.1 | SUSE-SU-2016:1698-1 |
| SLES 11 SP3 | xen | 4.2.5_14-18.2 | SUSE-SU-2015:1853-1 |
| SLES 11 SP2 | xen | 4.1.6_08-20.1 | SUSE-SU-2015:1952-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | xen | 4.5.2_02-4.1 | SUSE-SU-2015:2324-1 |
| SLES for SAP 12 | qemu | 2.0.2-48.19.1 | SUSE-SU-2016:1560-1 |
| SLES for SAP 12 | xen | 4.4.3_02-22.12.1 | SUSE-SU-2015:1908-1 |
| SLES for SAP 11 SP4 | kvm | 1.4.2-44.1 | SUSE-SU-2016:1785-1 |
| SLES for SAP 11 SP4 | xen | 4.4.3_02-26.2 | SUSE-SU-2015:1894-1 |
| SLES for SAP 11 SP3 | xen | 4.2.5_14-18.2 | SUSE-SU-2015:1853-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.7.0_12-1.3 | openSUSE-SU-2024:10196-1 |
Advisories 12
- DLA-574-1 qemu-kvm - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-573-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2745-1 qemu, qemu-kvm vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:1952-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1785-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2324-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1560-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1894-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1698-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1853-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1908-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10196-1 xen-4.7.0_12-1.3 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html
- http://www.ubuntu.com/usn/USN-2745-1
- http://www.openwall.com/lists/oss-security/2015/09/02/7
- https://github.com/qemu/qemu/commit/f9a70e79391f6d7c2a912d785239ee8effc1922d
- https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14