Description
Integer overflow in the qcow_open function in block/qcow.c in QEMU before 1.7.2 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a large image size, which triggers a buffer overflow or out-of-bounds read.
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 | 2.0.0+dfsg-6 | — |
| Debian 13 | qemu | 2.0.0+dfsg-6 | — |
| Debian 12 | qemu | 2.0.0+dfsg-6 | — |
| Debian 7 | qemu | 1.1.2+dfsg-6a+deb7u4 | DSA-3045-1 |
| Debian 7 | qemu-kvm | 1.1.2+dfsg-6+deb7u4 | DSA-3044-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.3 | USN-2342-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | qemu-img +7 | 10:1.5.3-60.el7_0.5 | RHSA-2014:0927 |
| RHEL 6 | qemu-img +6 | 2:0.12.1.2-2.415.el6_5.14 | RHSA-2014:1076, RHSA-2014:1075 |
| RHEL 6 | rhev-hypervisor6 | 6.5-20140821.1.el6ev | RHSA-2014:1168 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 5 | libcacard-rhev +4 | 10:1.5.3-60.el7_0.7 | RHSA-2014:1268 |
| Red Hat OpenStack 5 | qemu-img-rhev +2 | 2:0.12.1.2-2.415.el6_5.14 | RHSA-2014:1268, RHSA-2014:1187 |
| Red Hat OpenStack 4 | qemu-img-rhev +2 | 2:0.12.1.2-2.415.el6_5.14 | RHSA-2014:1187 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu-img +7 | 10:1.5.3-60.el7_0.5 | ELSA-2014-0927 |
Advisories 10
- RHSA-2014:1268 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1187 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1168 Red Hat Security Advisory: rhev-hypervisor6 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1076 Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1075 Red Hat Security Advisory: qemu-kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0927 Red Hat Security Advisory: qemu-kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-3045-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3044-1 qemu-kvm - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2342-1 qemu, qemu-kvm vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- ELSA-2014-0927 Moderate: qemu-kvm security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 23, 2014
References
- 67391 vdb-entry
- [Qemu-devel] 20140512 [PATCH 4/5] qcow1: Validate image size (CVE-2014-0223) mailing-list
- SUSE-SU-2015:0929 vendor-advisory
- [Qemu-stable] 20140723 [ANNOUNCE] QEMU 1.7.2 Stable released mailing-list
- DSA-3044 vendor-advisory
- FEDORA-2014-6970 vendor-advisory