Description
QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.
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 | 1:5.2+dfsg-1 | — |
| Debian 13 | qemu | 1:5.2+dfsg-1 | — |
| Debian 12 | qemu | 1:5.2+dfsg-1 | — |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u9 | DLA-3099-1 |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u12 | DLA-2469-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.10 | USN-4650-1 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.34 | USN-4650-1 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.48 | USN-4650-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | qemu | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | qemu | 5.2.0-17.1 | SUSE-SU-2021:1942-1 |
| SLES 15 SP2 | qemu | 4.2.1-11.19.2 | SUSE-SU-2021:1893-1 |
| SLES 15 SP1 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-51.1 | SUSE-SU-2023:0761-1, SUSE-SU-2021:1837-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-51.1 | SUSE-SU-2023:0761-1, SUSE-SU-2021:1837-1 |
| SLE Micro 5.0 | qemu | 4.2.1-11.19.2 | SUSE-SU-2021:1893-1 |
| SLE HPC 15 SP1 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
| SUSE Manager Server 4.0 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
| SUSE Manager Retail Branch Server 4.0 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
| SUSE Manager Proxy 4.0 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
| SUSE Enterprise Storage 6 | qemu | 3.1.1.1-9.30.2 | SUSE-SU-2021:2591-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 6.1.0-32.1 | openSUSE-SU-2024:11287-1 |
| openSUSE Leap 15.3 | qemu | 3.1.1.1-9.30.2 | openSUSE-SU-2021:2591-1, openSUSE-SU-2021:1942-1 |
| openSUSE Leap 15.2 | qemu | 4.2.1-lp152.9.16.2 | openSUSE-SU-2021:1043-1 |
| openSUSE Leap 15.2 | qemu-linux-user | 4.2.1-lp152.9.16.1 | openSUSE-SU-2021:1043-1 |
| openSUSE Leap 15.2 | qemu-testsuite | 4.2.1-lp152.9.16.7 | openSUSE-SU-2021:1043-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qemu | 5.1.0-r1 | — |
| Alpine v3.23 | qemu | 5.1.0-r1 | — |
| Alpine v3.22 | qemu | 5.1.0-r1 | — |
| Alpine v3.21 | qemu | 5.1.0-r1 | — |
| Alpine v3.20 | qemu | 5.1.0-r1 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qemu | 5.1.0-r1 | — |
| Alpine v3.18 | qemu | 5.1.0-r1 | — |
| Alpine v3.17 | qemu | 5.1.0-r1 | — |
| Alpine v3.16 | qemu | 5.1.0-r1 | — |
Advisories 13
- WID-SEC-2022-1269 QEMU: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- USN-4650-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3099-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2469-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:2591-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0761-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1837-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1893-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2591-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1043-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1942-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1942-1 Security update for qemu SUSE / openSUSE Security Updates · May 7, 2025
- openSUSE-SU-2024:11287-1 qemu-6.1.0-32.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg00733.html
- https://bugs.launchpad.net/qemu/+bug/1892960
- http://www.openwall.com/lists/oss-security/2020/09/16/6
- https://security.netapp.com/advisory/ntap-20201009-0005/
- [debian-lts-announce] 20201129 [SECURITY] [DLA 2469-1] qemu security update mailing-list
- [oss-security] 20210309 CVE-2021-3409 QEMU: sdhci: incomplete fix for CVE-2020-17380/CVE-2020-25085 mailing-list
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update mailing-list