Description
QEMU before 2.0.0 block drivers for CLOOP, QCOW2 version 2 and various other image formats are vulnerable to potential memory corruptions, integer/buffer overflows or crash caused by missing input validations which could allow a remote user to execute arbitrary code on the host with the privileges of the QEMU process.
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-1 | — |
| Debian 13 | qemu | 2.0.0+dfsg-1 | — |
| Debian 12 | qemu | 2.0.0+dfsg-1 | — |
| 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 6 | qemu-img +6 | 2:0.12.1.2-2.415.el6_5.8 | RHSA-2014:0421, RHSA-2014:0420 |
| RHEL 6 | rhev-hypervisor6 | 6.5-20140603.2.el6ev | RHSA-2014:0674 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 4 | qemu-img-rhev +2 | 2:0.12.1.2-2.415.el6_5.8 | RHSA-2014:0434 |
| Red Hat OpenStack 3 | qemu-img-rhev +2 | 2:0.12.1.2-2.415.el6_5.8 | RHSA-2014:0435 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 2.6.1-1.5 | openSUSE-SU-2024:10233-1 |
Advisories 9
- RHSA-2014:0674 Red Hat Security Advisory: rhev-hypervisor6 3.4.0 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0434 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0435 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0421 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0420 Red Hat Security Advisory: qemu-kvm security 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
- openSUSE-SU-2024:10233-1 qemu-2.6.1-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=24342f2cae47d03911e346fe1e520b00dc2818e0
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=2d51c32c4b511db8bb9e58208f1e2c25e4c06c85
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=5dab2faddc8eaa1fb1abdbe2f502001fc13a1b21
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=63fa06dc978f3669dbfd9443b33cde9e2a7f4b41
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6d4b9e55fc625514a38d27cff4b9933f617fa7dc
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=7b103b36d6ef3b11827c203d3a793bf7da50ecd6
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=97f1c45c6f456572e5b504b8614e4a69e23b8e3a
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=a1b3955c9415b1e767c130a2f59fee6aa28e575b
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ce48f2f441ca98885267af6fd636a7cb804ee646
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d65f97a82c4ed48374a764c769d4ba1ea9724e97
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=f56b9bc3ae20fc93815b34aa022be919941406ce
- https://bugzilla.redhat.com/show_bug.cgi?id=1079240
- http://rhn.redhat.com/errata/RHSA-2014-0420.html
- http://rhn.redhat.com/errata/RHSA-2014-0421.html
- https://www.vulnerabilitycenter.com/#%21vul=44767