Vulnerability · Published Dec 31, 2020 · Assigned by mitre
CVE-2020-11947
Low 3.8
In plain English
A low-severity security flaw in the hivex package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)3.8Low
Exploit odds (30 days)0.5%top 58.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | hivex-devel | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libguestfs-winsupport | 8.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | libguestfs-winsupport | 8.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | libnbd | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | libnbd | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libnbd-devel | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libnbd-devel | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | libvirt-dbus | 1.3.0-2.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | libvirt-dbus | 1.3.0-2.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | libvirt-dbus | 1.3.0-2.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdfuse | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | nbdfuse | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-bash-completion | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-basic-filters | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-basic-plugins | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-curl-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-devel | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-example-plugins | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-gzip-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-linuxdisk-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-python-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-server | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-ssh-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-vddk-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | nbdkit-xz-filter | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | ocaml-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | ocaml-hivex-devel | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | ocaml-libguestfs | 1:1.40.2-27.module_el8.4.0+2358+630e803b.alma | ALSA-2021:1762 |
| AlmaLinux:8 | ocaml-libguestfs-devel | 1:1.40.2-27.module_el8.4.0+2358+630e803b.alma | ALSA-2021:1762 |
| AlmaLinux:8 | ocaml-libnbd | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | ocaml-libnbd-devel | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | perl-Sys-Virt | 6.0.0-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | perl-Sys-Virt | 6.0.0-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | perl-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | python3-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | python3-libnbd | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | python3-libnbd | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | python3-libvirt | 6.0.0-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | python3-libvirt | 6.0.0-1.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | ruby-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | seabios | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | seabios-bin | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | seavgabios-bin | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | sgabios | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | sgabios | 1:0.20170427git-3.module_el8.3.0+2048+e7a0a3ea | ALSA-2021:1762 |
| AlmaLinux:8 | sgabios-bin | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | sgabios-bin | 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703 | ALSA-2021:1762 |
| AlmaLinux:8 | supermin | 5.1.19-10.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| AlmaLinux:8 | supermin-devel | 5.1.19-10.module_el8.5.0+2608+72063365 | ALSA-2021:1762 |
| Debian:12 | qemu | 1:4.2-7 | DEBIAN-CVE-2020-11947 |
| Debian:13 | qemu | 1:4.2-7 | DEBIAN-CVE-2020-11947 |
| Debian:14 | qemu | 1:4.2-7 | DEBIAN-CVE-2020-11947 |
| Rocky Linux:8 | hivex | 0:1.3.18-20.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libguestfs | 1:1.40.2-27.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libguestfs-winsupport | 0:8.2-1.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.6.0+847+b490afdd | RLSA-2021:1762 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.7.0+1084+97b81f61 | RLSA-2021:1762 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libnbd | 0:1.2.2-1.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libvirt | 0:6.0.0-35.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libvirt-dbus | 0:1.3.0-2.module+el8.6.0+847+b490afdd | RLSA-2021:1762 |
| Rocky Linux:8 | libvirt-dbus | 0:1.3.0-2.module+el8.7.0+1084+97b81f61 | RLSA-2021:1762 |
| Rocky Linux:8 | libvirt-dbus | 0:1.3.0-2.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | libvirt-python | 0:6.0.0-1.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | nbdkit | 0:1.16.2-4.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.6.0+847+b490afdd | RLSA-2021:1762 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.7.0+1084+97b81f61 | RLSA-2021:1762 |
| Rocky Linux:8 | perl-Sys-Virt | 0:6.0.0-1.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | qemu-kvm | 5:4.2.0-48.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | seabios | 0:1.13.0-2.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.6.0+847+b490afdd | RLSA-2021:1762 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.7.0+1084+97b81f61 | RLSA-2021:1762 |
| Rocky Linux:8 | supermin | 0:5.1.19-10.module+el8.4.0+534+4680a14e | RLSA-2021:1762 |
Affected products (as reported)
References
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5 x_refsource_MISC
- [oss-security] 20210113 CVE-2020-11947 QEMU: heap buffer overflow in iSCSI block driver may lead to information disclosure mailing-list, x_refsource_MLIST
- https://security.netapp.com/advisory/ntap-20210212-0001/ x_refsource_CONFIRM