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Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade qemu-guest-agentUpgrade qemu-kvm-toolsUpgrade qemu-kvmUpgrade qemu-img | Aug 17, 2018 | Apr 22, 2014 |
| Debian | — | Upgrade qemu-kvmUpgrade qemu | Jul 30, 2024 | Sep 29, 2022 |
| Gentoo Linux | — | Upgrade app-emulation/qemu. | Oct 30, 2017 | Aug 30, 2014 |
| Oracle_linux | — | Upgrade qemu-kvm-toolsUpgrade qemu-imgUpgrade qemu-guest-agentUpgrade qemu-kvm | Oct 16, 2024 | Feb 11, 2020 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Sep 29, 2022 |
| Suse | — | Upgrade qemu-guest-agentUpgrade kvmUpgrade qemu-x86Upgrade qemu-block-sshUpgrade qemu-vgabiosUpgrade qemu-toolsUpgrade qemu-sgabiosUpgrade qemu-ppcUpgrade qemu-kvmUpgrade qemu-block-rbdUpgrade qemuUpgrade qemu-langUpgrade qemu-ipxeUpgrade qemu-seabiosUpgrade qemu-armUpgrade qemu-ksmUpgrade qemu-s390Upgrade qemu-block-iscsiUpgrade qemu-block-curl | Dec 18, 2015 | May 8, 2014 |
| Ubuntu | — | Upgrade qemu-system-ppcUpgrade qemu-systemUpgrade qemu-system-x86Upgrade qemu-system-aarch64Upgrade qemu-system-miscUpgrade qemu-system-mipsUpgrade qemu-system-sparcUpgrade qemu-system-armUpgrade qemu-kvm | Nov 8, 2024 | Sep 29, 2022 |
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