A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libvirt | Redhat | 3.10.0 (including) | 6.0.0 (excluding) |
| Red Hat Enterprise Linux 7 | RedHat | libvirt-0:4.5.0-36.el7 | * |
| Red Hat Enterprise Linux 8 | RedHat | virt-devel:rhel-8030020200909014558.30b713e6 | * |
| Red Hat Enterprise Linux 8 | RedHat | virt:rhel-8030020200909014558.30b713e6 | * |
| Libvirt | Ubuntu | bionic | * |
| Libvirt | Ubuntu | eoan | * |
| Libvirt | Ubuntu | esm-infra/bionic | * |
| Libvirt | Ubuntu | trusty | * |
| Libvirt | Ubuntu | upstream | * |
Potential Mitigations
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1790725
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10703
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=5d5c732d748d644ec14626bce448e84bdc4bd93e
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=7aa0e8c0cb8a6293d0c6f7e3d29c13b96dec2129
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=dfff16a7c261f8d28e3abe60a47165f845fa952f
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/
- https://security.netapp.com/advisory/ntap-20200608-0005/
- https://bugzilla.redhat.com/show_bug.cgi?id=1790725
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10703
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=5d5c732d748d644ec14626bce448e84bdc4bd93e
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=7aa0e8c0cb8a6293d0c6f7e3d29c13b96dec2129
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=dfff16a7c261f8d28e3abe60a47165f845fa952f
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/
- https://security.netapp.com/advisory/ntap-20200608-0005/