CVE-2024-2496

Libvirt: null pointer dereference in udevconnectlistallinterfaces()

Description

A NULL pointer dereference flaw was found in the udevConnectListAllInterfaces() function in libvirt. This issue can occur when detaching a host interface while at the same time collecting the list of interfaces via virConnectListAllInterfaces API. This flaw could be used to perform a denial of service attack by causing the libvirt daemon to crash.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:2236 third party advisory vendor advisory
https://access.redhat.com/security/cve/CVE-2024-2496 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2269672 patch issue tracking
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html mailing list

Frequently Asked Questions

What is the severity of CVE-2024-2496?
CVE-2024-2496 has been scored as a medium severity vulnerability.
How to fix CVE-2024-2496?
As a workaround for remediating CVE-2024-2496: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2024-2496 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-2496 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-2496?
CVE-2024-2496 affects Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization.
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