CVE-2021-3748
Summary
| CVE | CVE-2021-3748 |
|---|
| State | PUBLIC |
|---|
| Assigner | [email protected] |
|---|
| Source Priority | CVE Program / NVD first with legacy fallback |
|---|
| Published | 2022-03-23 20:15:00 UTC |
|---|
| Updated | 2023-01-03 15:16:00 UTC |
|---|
| Description | A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process. |
|---|
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|
| CVE-2021-3748 QEMU Vulnerability in NetApp Products | NetApp Product Security |
CONFIRM |
security.netapp.com |
|
| [PATCH] virtio-net: fix use after unmap/free for sg |
MISC |
lists.nongnu.org |
|
| [SECURITY] [DLA 3099-1] qemu security update |
MLIST |
lists.debian.org |
|
| CVE-2021-3748 | Ubuntu |
MISC |
ubuntu.com |
|
| 1998514 – (CVE-2021-3748) CVE-2021-3748 QEMU: virtio-net: heap use-after-free in virtio_net_receive_rcu |
MISC |
bugzilla.redhat.com |
|
| QEMU: Multiple Vulnerabilities (GLSA 202208-27) — Gentoo security |
GENTOO |
security.gentoo.org |
|
| [SECURITY] [DLA 2970-1] qemu security update |
MLIST |
lists.debian.org |
|
| virtio-net: fix use after unmap/free for sg · qemu/qemu@bedd7e9 · GitHub |
MISC |
github.com |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159858 Oracle Enterprise Linux Security Update for virt:ol and virt-devel:ol (ELSA-2022-1759)
- 159862 Oracle Enterprise Linux Security Update for qemu (ELSA-2022-9432)
- 159880 Oracle Enterprise Linux Security Update for kvm_utils (ELSA-2022-9460)
- 159903 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9492)
- 159904 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9493)
- 159906 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9491)
- 159908 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9494)
- 178817 Debian Security Update for qemu (DSA 4980-1)
- 179172 Debian Security Update for qemu (DLA 2970-1)
- 180995 Debian Security Update for qemu (DLA 3099-1)
- 182990 Debian Security Update for qemu (CVE-2021-3748)
- 198683 Ubuntu Security Notification for QEMU Vulnerabilities (USN-5307-1)
- 240292 Red Hat Update for virt:rhel and virt-devel:rhel security (RHSA-2022:1759)
- 671198 EulerOS Security Update for qemu (EulerOS-SA-2022-1034)
- 671203 EulerOS Security Update for qemu (EulerOS-SA-2022-1014)
- 710604 Gentoo Linux QEMU Multiple Vulnerabilities (GLSA 202208-27)
- 751276 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3519-1)
- 751322 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3614-1)
- 751323 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3613-1)
- 751330 OpenSUSE Security Update for qemu (openSUSE-SU-2021:3614-1)
- 751332 OpenSUSE Security Update for qemu (openSUSE-SU-2021:3605-1)
- 751334 OpenSUSE Security Update for qemu (openSUSE-SU-2021:3604-1)
- 751337 OpenSUSE Security Update for qemu (openSUSE-SU-2021:1461-1)
- 751338 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3635-1)
- 751362 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3653-1)
- 900773 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu-kvm (9111)
- 901656 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu (9121)
- 902027 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu-kvm (9111-1)
- 902087 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu (9121-1)
- 940525 AlmaLinux Security Update for virt:rhel and virt-devel:rhel (ALSA-2022:1759)
- 960314 Rocky Linux Security Update for virt:rhel and virt-devel:rhel (RLSA-2022:1759)
