Description
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | QEMU | all versions | — |
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 | 1:8.1.0+ds-1 | — |
| Debian 13 | qemu | 1:8.1.0+ds-1 | — |
| Debian 12 | qemu | No fix yet | — |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u14 | DLA-2623-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | qemu +1 | No fix yet | — |
| Ubuntu 26.04 LTS | qemu +1 | No fix yet | — |
| Ubuntu 25.10 | qemu | No fix yet | — |
| Ubuntu 24.04 LTS | qemu | No fix yet | — |
| Ubuntu 22.04 LTS | qemu | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | qemu | No fix yet | — |
| Ubuntu Pro 18.04 LTS | qemu | No fix yet | — |
| Ubuntu Pro 16.04 LTS | qemu | No fix yet | — |
| Ubuntu Pro 14.04 LTS | qemu | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | qemu | 5.2.0-103.2 | SUSE-SU-2021:2858-1 |
| SLES 15 SP2 | qemu | 4.2.1-11.28.1 | SUSE-SU-2021:2789-1 |
| SLES 15 SP1 | qemu | 3.1.1.1-80.40.1 | SUSE-SU-2021:3614-1 |
| SLES 15 | qemu | 2.11.2-70.59.1 | SUSE-SU-2021:3613-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-57.2 | SUSE-SU-2021:2813-1 |
| SLES 12 SP5 | xen | 4.12.4_12-3.49.1 | SUSE-SU-2021:2924-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | qemu | 2.11.2-5.40.2 | SUSE-SU-2021:3635-1 |
| SLES 12 SP4 | xen | 4.11.4_20-2.60.1 | SUSE-SU-2021:2955-1 |
| SLES 12 SP3 | xen | 4.9.4_20-3.91.1 | SUSE-SU-2021:2957-1 |
| SLES 12 SP2 | qemu | 2.6.2-41.73.1 | SUSE-SU-2021:3575-1 |
| SLES 12 SP2 | xen | 4.7.6_16-43.79.5 | SUSE-SU-2021:3322-1 |
| SLES 11 SP4 | xen | 4.4.4_50-61.67.1 | SUSE-SU-2021:14848-1 |
| SLES for SAP 15 SP1 | qemu | 3.1.1.1-80.40.1 | SUSE-SU-2021:3614-1 |
| SLES for SAP 15 | qemu | 2.11.2-70.59.1 | SUSE-SU-2021:3613-1 |
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-57.2 | SUSE-SU-2021:2813-1 |
| SLES for SAP 12 SP5 | xen | 4.12.4_12-3.49.1 | SUSE-SU-2021:2924-1 |
| SLES for SAP 12 SP4 | qemu | 2.11.2-5.40.2 | SUSE-SU-2021:3635-1 |
| SLES for SAP 12 SP4 | xen | 4.11.4_20-2.60.1 | SUSE-SU-2021:2955-1 |
| SLES for SAP 12 SP3 | xen | 4.9.4_20-3.91.1 | SUSE-SU-2021:2957-1 |
| SLE Micro 5.0 | qemu | 4.2.1-11.28.1 | SUSE-SU-2021:2789-1 |
| SLE HPC 15 SP1 | qemu | 3.1.1.1-80.40.1 | SUSE-SU-2021:3614-1 |
| SLE HPC 15 | qemu | 2.11.2-70.59.1 | SUSE-SU-2021:3613-1 |
| SUSE OpenStack Cloud Crowbar 9 | qemu | 2.11.2-5.40.2 | SUSE-SU-2021:3635-1 |
| SUSE OpenStack Cloud Crowbar 9 | xen | 4.11.4_20-2.60.1 | SUSE-SU-2021:2955-1 |
| SUSE OpenStack Cloud Crowbar 8 | xen | 4.9.4_20-3.91.1 | SUSE-SU-2021:2957-1 |
| SUSE OpenStack Cloud 9 | qemu | 2.11.2-5.40.2 | SUSE-SU-2021:3635-1 |
| SUSE OpenStack Cloud 9 | xen | 4.11.4_20-2.60.1 | SUSE-SU-2021:2955-1 |
| SUSE OpenStack Cloud 8 | xen | 4.9.4_20-3.91.1 | SUSE-SU-2021:2957-1 |
| SUSE HPE Helion OpenStack 8 | xen | 4.9.4_20-3.91.1 | SUSE-SU-2021:2957-1 |
| SUSE Enterprise Storage 6 | qemu | 3.1.1.1-80.40.1 | SUSE-SU-2021:3614-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | qemu | 3.1.1.1-80.40.1 | openSUSE-SU-2021:3614-1, openSUSE-SU-2021:2858-1, openSUSE-SU-2021:2789-1 |
| openSUSE Leap 15.2 | qemu +2 | 4.2.1-lp152.9.20.1 | openSUSE-SU-2021:1202-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qemu | 6.0.0-r1 | — |
| Alpine v3.23 | qemu | 6.0.0-r1 | — |
| Alpine v3.22 | qemu | 6.0.0-r1 | — |
| Alpine v3.21 | qemu | 6.0.0-r1 | — |
| Alpine v3.20 | qemu | 6.0.0-r1 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qemu | 6.0.0-r1 | — |
| Alpine v3.18 | qemu | 6.0.0-r1 | — |
| Alpine v3.17 | qemu | 6.0.0-r1 | — |
| Alpine v3.16 | qemu | 6.0.0-r1 | — |
| Alpine v3.15 | qemu | 6.0.0-r1 | — |
| Alpine v3.14 | qemu | 6.0.0-r1 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 6.2.0-18 | — |
| Azure Linux 2 (CBL-Mariner) | qemu | 6.2.0-2 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | qemu +13 | 11.0.1-r0 | — |
Advisories 17
- DLA-2623-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2021:2955-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2924-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3614-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3613-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3322-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:3614-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3575-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:2789-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2789-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1202-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2957-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:2858-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3635-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:14848-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2021:2858-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2021:2813-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1930646
- https://www.openwall.com/lists/oss-security/2021/02/25/1
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1
- [debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security update mailing-list
- https://security.netapp.com/advisory/ntap-20210507-0003/