Vulnerability Description
A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2024:2560
- https://access.redhat.com/errata/RHSA-2024:3253
- https://access.redhat.com/security/cve/CVE-2024-2494
- https://bugzilla.redhat.com/show_bug.cgi?id=2270115
- https://lists.libvirt.org/archives/list/[email protected]/thread/BKRQXPLPC
- https://access.redhat.com/errata/RHSA-2024:2560
- https://access.redhat.com/errata/RHSA-2024:3253
- https://access.redhat.com/security/cve/CVE-2024-2494
- https://bugzilla.redhat.com/show_bug.cgi?id=2270115
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://lists.libvirt.org/archives/list/[email protected]/thread/BKRQXPLPC
- https://security.netapp.com/advisory/ntap-20240517-0009/
FAQ
What is CVE-2024-2494?
CVE-2024-2494 is a vulnerability with a CVSS score of 6.2 (MEDIUM). A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passin...
How severe is CVE-2024-2494?
CVE-2024-2494 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-2494?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.