Description
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
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 | 1:3.1+dfsg-1 | — |
| Debian 13 | qemu | 1:3.1+dfsg-1 | — |
| Debian 12 | qemu | 1:3.1+dfsg-1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | xen | 4.5.5_28-22.58.1 | SUSE-SU-2019:0825-1 |
| SLES 12 | xen | 4.4.4_40-22.77.1 | SUSE-SU-2019:0827-1 |
| SLES 11 SP4 | kvm | 1.4.2-60.18.2 | SUSE-SU-2018:3975-1 |
| SLES 11 SP4 | xen | 4.4.4_38-61.40.1 | SUSE-SU-2019:13921-1 |
| SLES 11 SP3 | kvm | 1.4.2-53.26.2 | SUSE-SU-2018:3987-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | xen | 4.5.5_28-22.58.1 | SUSE-SU-2019:0825-1 |
| SLES for SAP 11 SP4 | kvm | 1.4.2-60.18.2 | SUSE-SU-2018:3975-1 |
| SLES for SAP 11 SP4 | xen | 4.4.4_38-61.40.1 | SUSE-SU-2019:13921-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kvm | 1.4.2-53.26.2 | SUSE-SU-2018:3987-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | xen | 4.2.5_21-45.30.1 | SUSE-SU-2019:14011-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu +10 | 15:3.1.0-3.el7 | ELSA-2019-4640 |
Advisories 7
- SUSE-SU-2019:14011-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:13921-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3987-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3975-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0825-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0827-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2019-4640 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 14, 2019
References
- 105953 vdb-entry
- [qemu-devel] 20181012 [PATCH v2 07/11] chardev: Let IOReadHandler use unsigned type mailing-list
- [qemu-devel] 20181012 [PATCH v2 00/11] chardev: Convert IO handlers to use unsigned type mailing-list
- [oss-security] 20181017 CVE-2018-18438 Qemu: Integer overflow in ccid_card_vscard_read() allows memory corruption mailing-list