Description
QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address.
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+deb9u13 | DLA-2560-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.12 | USN-4725-1 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.35 | USN-4725-1 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.49 | USN-4725-1 |
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+esm6 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | SLOF | 20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418 | RHSA-2021:4191 |
| RHEL 8 | hivex +6 | 1.3.18-21.module+el8.5.0+10709+b3edb581 | RHSA-2021:4191 |
| RHEL 8 | libguestfs-winsupport | 8.2-1.module+el8.3.0+6423+e4cb6418 | RHSA-2021:4191 |
| RHEL 8 | libiscsi +2 | 1.18.0-8.module+el8.1.0+4066+0f1aadab | RHSA-2021:4191 |
| RHEL 8 | libnbd +5 | 1.2.2-1.module+el8.3.0+7353+9de0a3cc | RHSA-2021:4191 |
| RHEL 8 | libvirt +28 | 6.0.0-37.module+el8.5.0+12162+40884dd2 | RHSA-2021:4191 |
| RHEL 8 | libvirt-dbus | 1.3.0-2.module+el8.3.0+6423+e4cb6418 | RHSA-2021:4191 |
| RHEL 8 | nbdkit +13 | 1.16.2-4.module+el8.3.0+6922+fd575af8 | RHSA-2021:4191 |
| RHEL 8 | netcf +2 | 0.2.8-12.module+el8.1.0+4066+0f1aadab | RHSA-2021:4191 |
| RHEL 8 | perl-Sys-Virt +2 | 6.0.0-1.module+el8.3.0+6423+e4cb6418 | RHSA-2021:4191 |
| RHEL 8 | qemu-img +10 | 15:4.2.0-59.module+el8.5.0+12817+cb650d43 | RHSA-2021:4191 |
| RHEL 8 | seabios +2 | 1.13.0-2.module+el8.3.0+7353+9de0a3cc | RHSA-2021:4191 |
| RHEL 8 | sgabios +1 | 1:0.20170427git-3.module+el8.1.0+4066+0f1aadab | RHSA-2021:4191 |
| RHEL 8 | supermin +1 | 5.1.19-10.module+el8.3.0+6423+e4cb6418 | RHSA-2021:4191 |
| RHEL 8 | virt-dib +25 | 1:1.40.2-28.module+el8.5.0+10717+67be7ac4 | RHSA-2021:4191 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | hivex +4 | 1.3.18-21.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | libguestfs-winsupport | 8.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | libiscsi +2 | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | libnbd +3 | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | libvirt +28 | 6.0.0-37.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | libvirt-dbus | 1.3.0-2.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | nbdkit +13 | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | netcf +2 | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | perl-Sys-Virt +1 | 6.0.0-1.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | seabios +2 | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | sgabios +1 | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | supermin +1 | 5.1.19-10.module_el8.5.0+2608+72063365 | ALSA-2021:4191 |
| AlmaLinux 8 | virt-dib +23 | 1:1.40.2-28.module_el8.5.0+2608+72063365.alma | ALSA-2021:4191 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | hivex | 1.3.18-21.module+el8.4.0+642+7e26f5e1 | RLSA-2021:4191 |
| Rocky Linux 8 | libguestfs | 1:1.40.2-28.module+el8.5.0+670+c4aa478c | RLSA-2021:4191 |
| Rocky Linux 8 | libguestfs-winsupport | 8.2-1.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | libiscsi | 1.18.0-8.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | libnbd | 1.2.2-1.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | libvirt | 6.0.0-37.module+el8.5.0+670+c4aa478c | RLSA-2021:4191 |
| Rocky Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | nbdkit | 1.16.2-4.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | netcf | 0.2.8-12.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | perl-Sys-Virt +1 | 6.0.0-1.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | qemu-kvm | 5:4.2.0-59.module+el8.5.0+670+c4aa478c | RLSA-2021:4191 |
| Rocky Linux 8 | seabios | 1.13.0-2.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | sgabios | 1:0.20170427git-3.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
| Rocky Linux 8 | supermin | 5.1.19-10.module+el8.4.0+534+4680a14e | RLSA-2021:4191 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qemu | 5.0.0-r0 | — |
| Alpine v3.23 | qemu | 5.0.0-r0 | — |
| Alpine v3.22 | qemu | 5.0.0-r0 | — |
| Alpine v3.21 | qemu | 5.0.0-r0 | — |
| Alpine v3.20 | qemu | 5.0.0-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qemu | 5.0.0-r0 | — |
| Alpine v3.18 | qemu | 5.0.0-r0 | — |
| Alpine v3.17 | qemu | 5.0.0-r0 | — |
| Alpine v3.16 | qemu | 5.0.0-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | hivex +6 | 1.3.18-21.module+el8.5.0+20365+3abb8f5b | ELSA-2021-4191 |
| Oracle Linux 8 | libguestfs-winsupport | 8.2-1.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | libiscsi +2 | 1.18.0-8.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | libnbd +5 | 1.2.2-1.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | libvirt +28 | 6.0.0-37.0.1.module+el8.5.0+20365+3abb8f5b | ELSA-2021-4191 |
| Oracle Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | nbdkit +13 | 1.16.2-4.0.1.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | netcf +2 | 0.2.8-12.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | perl-Sys-Virt +1 | 6.0.0-1.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | qemu-img +10 | 15:4.2.0-59.module+el8.5.0+20410+46b2d321 | ELSA-2021-4191 |
| Oracle Linux 8 | seabios +2 | 1.13.0-2.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | sgabios +1 | 1:0.20170427git-3.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | supermin +1 | 5.1.19-10.module+el8.3.0+7860+a7792d29 | ELSA-2021-4191 |
| Oracle Linux 8 | virt-dib +25 | 1:1.40.2-28.0.1.module+el8.5.0+20363+3abb8f5b | ELSA-2021-4191 |
Advisories 8
- ALSA-2021:4191 Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-1090 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- RHSA-2021:4191 Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-4725-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3099-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2560-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4191 Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- ELSA-2021-4191 Moderate: virt:ol and virt-devel:ol security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021
References
- https://bugs.launchpad.net/qemu/+bug/1886362
- https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg05304.html
- [oss-security] 20200721 CVE-2020-15859 QEMU: net: e1000e: use-after-free while sending packets mailing-list
- [debian-lts-announce] 20210218 [SECURITY] [DLA 2560-1] qemu security update mailing-list
- GLSA-202208-27 vendor-advisory
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update mailing-list