Description
sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash 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 | 1:5.0-8 | — |
| Debian 13 | qemu | 1:5.0-8 | — |
| Debian 12 | qemu | 1:5.0-8 | — |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u9 | DLA-3099-1 |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u11 | DLA-2373-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.4 | USN-4467-1 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.31 | USN-4467-1 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.45 | USN-4467-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.47+esm1 | USN-4467-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | qemu | 3.1.1.1-66.1 | SUSE-SU-2023:0761-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-66.1 | SUSE-SU-2023:0761-1 |
| SLE Real Time 15 SP2 | qemu | 4.2.1-11.34.2 | SUSE-SU-2022:0210-2 |
| SLE Micro 5.0 | qemu | 4.2.1-11.34.2 | SUSE-SU-2022:0210-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | qemu | 4.2.1-11.34.2 | openSUSE-SU-2022:0210-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu +12 | 15:4.2.1-4.el7 | ELSA-2021-9034 |
Advisories 10
- USN-4467-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3099-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2373-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-4467-2 qemu vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2023:0761-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0210-2 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0210-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0210-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1267 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Sep 2, 2024
- ELSA-2021-9034 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 8, 2021
References
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html
- http://www.openwall.com/lists/oss-security/2020/05/27/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1838546
- USN-4467-1 vendor-advisory
- [debian-lts-announce] 20200913 [SECURITY] [DLA 2373-1] qemu security update mailing-list
- GLSA-202011-09 vendor-advisory
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update mailing-list