CVE-2020-10703: Null Pointer Dereference
First published: Tue Jan 14 2020(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libvirt | <0:4.5.0-36.el7 | 0:4.5.0-36.el7 |
| Redhat Libvirt | >=3.10.0<6.0.0 | |
| redhat/libvirt | <6.0.0 | 6.0.0 |
| ubuntu/libvirt | <4.0.0-1ubuntu8.17 | 4.0.0-1ubuntu8.17 |
| ubuntu/libvirt | <5.4.0-0ubuntu5.4 | 5.4.0-0ubuntu5.4 |
| ubuntu/libvirt | <6.0.0-2 | 6.0.0-2 |
| debian/libvirt | 7.0.0-3+deb11u2 9.0.0-4 10.6.0-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-10703 https://nvd.nist.gov/vuln/detail/CVE-2020-10703
- https://bugzilla.redhat.com/show_bug.cgi?id=1816650
- https://access.redhat.com/errata/RHSA-2020:4000
- https://access.redhat.com/errata/RHSA-2020:4676
- https://access.redhat.com/security/cve/cve-2020-10703
- 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;a=commit;h=5d5c732d748d644ec14626bce448e84bdc4bd93e
- https://libvirt.org/git/?p=libvirt.git;a=commit;h=7aa0e8c0cb8a6293d0c6f7e3d29c13b96dec2129
- https://libvirt.org/git/?p=libvirt.git;a=commit;h=dfff16a7c261f8d28e3abe60a47165f845fa952f
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/
- https://security.netapp.com/advisory/ntap-20200608-0005/
- https://launchpad.net/bugs/cve/CVE-2020-10703
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1790725
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1820690
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1816650#c7
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=dfff16a7c261f8d28e3abe60a47165f845fa952f
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=5d5c732d748d644ec14626bce448e84bdc4bd93e
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=7aa0e8c0cb8a6293d0c6f7e3d29c13b96dec2129
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security-tracker.debian.org/tracker/CVE-2020-10703
- https://ubuntu.com/security/notices/USN-4371-1
- https://www.cve.org/CVERecord?id=CVE-2020-10703
- https://nvd.nist.gov/vuln/detail/CVE-2020-10703
- https://ubuntu.com/security/CVE-2020-10703
Frequently Asked Questions
What is CVE-2020-10703?
CVE-2020-10703 is a vulnerability that involves a NULL pointer dereference in the libvirt API responsible for fetching a storage pool based on its target path.
How severe is CVE-2020-10703?
CVE-2020-10703 has a severity rating of 6.5 (medium).
Which software is affected by CVE-2020-10703?
This vulnerability affects libvirt versions up to and including 6.0.0 on Red Hat, Debian, and Ubuntu systems.
How can I fix CVE-2020-10703?
To fix CVE-2020-10703, you should update libvirt to version 6.0.0 or higher.
Where can I find more information about CVE-2020-10703?
You can find more information about CVE-2020-10703 on the Red Hat Bugzilla and libvirt websites.
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