CVE-2024-1441: Libvirt: off-by-one error in udevlistinterfacesbystatus()
First published: Mon Feb 12 2024(Updated: )
An off-by-one error flaw was found in the udevListInterfacesByStatus() function in libvirt when the number of interfaces exceeds the size of the `names` array. This issue can be reproduced by sending specially crafted data to the libvirt daemon, allowing an unprivileged client to perform a denial of service attack by causing the libvirt daemon to crash.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libvirt | <10.1.0 | 10.1.0 |
| ubuntu/libvirt | <6.0.0-0ubuntu8.19 | 6.0.0-0ubuntu8.19 |
| ubuntu/libvirt | <8.0.0-1ubuntu7.10 | 8.0.0-1ubuntu7.10 |
| ubuntu/libvirt | <9.6.0-1ubuntu1.1 | 9.6.0-1ubuntu1.1 |
| debian/libvirt | <=5.0.0-4+deb10u1<=7.0.0-3+deb11u2<=9.0.0-4<=10.0.0-2 | 5.0.0-4+deb10u2 10.2.0-1 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2024-1441
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2268983
- https://bugzilla.redhat.com/show_bug.cgi?id=2263841
- https://www.cve.org/CVERecord?id=CVE-2024-1441
- https://ubuntu.com/security/notices/USN-6734-1
- https://nvd.nist.gov/vuln/detail/CVE-2024-1441
- https://launchpad.net/bugs/cve/CVE-2024-1441
- https://security-tracker.debian.org/tracker/CVE-2024-1441
- https://gitlab.com/libvirt/libvirt/-/commit/c664015fe3a7bf59db26686e9ed69af011c6ebb8
- https://ubuntu.com/security/CVE-2024-1441
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/45FFKU3LODT345LAB5T4XZA5WKYMXJYU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E6MVZO5GXDB7RHY6MS3ZXES3HPK34P3A/
- https://gitlab.com/libvirt/libvirt/-/commit/5a33366f5c0b18c93d161bd144f9f079de4ac8ca
- https://gitlab.com/libvirt/libvirt/-/commit/d6064e2759a24e0802f363e3a810dc5a7d7ebb15
- https://access.redhat.com/errata/RHSA-2024:2560
Frequently Asked Questions
What is the severity of CVE-2024-1441?
CVE-2024-1441 has a medium severity rating due to its potential to be exploited by unprivileged clients.
How do I fix CVE-2024-1441?
To fix CVE-2024-1441, update the libvirt package to version 10.1.0 for Red Hat, 6.0.0-0ubuntu8.19 for focal, 8.0.0-1ubuntu7.10 for jammy, or 9.6.0-1ubuntu1.1 for mantic.
What causes CVE-2024-1441?
CVE-2024-1441 is caused by an off-by-one error in the udevListInterfacesByStatus() function of libvirt when handling a number of interfaces that exceeds the size of the names array.
Which versions of libvirt are affected by CVE-2024-1441?
Affected versions of libvirt include versions prior to 10.1.0 for Red Hat, and several specific Ubuntu and Debian versions listed in the vulnerability report.
Can CVE-2024-1441 be exploited remotely?
Yes, CVE-2024-1441 can be exploited remotely by sending specially crafted data to the libvirt daemon.
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