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libvirt

A NULL pointer dereference vulnerability exists in the udevConnectListAllInterfaces() function of libvirt. This flaw occurs when detaching a host interface concurrently with collecting the list of interfaces via the virConnectListAllInterfaces API, potentially causing the libvirt daemon to crash and resulting in a denial of service. The issue affects multiple Red Hat Enterprise Linux 9 variants and related packages. A security update addressing this vulnerability is available from Red Hat.

CVE-2024-2496 is a NULL pointer dereference vulnerability in the udevConnectListAllInterfaces() function within libvirt. The flaw manifests when a host interface is detached simultaneously as the virConnectListAllInterfaces API is used to collect interface lists, leading to a crash of the libvirt daemon. This results in a denial of service condition. The vulnerability has a CVSS 3.1 base score of 5.5 (medium severity) with an attack vector of local, low complexity, and low privileges required. Red Hat has released patches for affected versions of libvirt in Red Hat Enterprise Linux 9 and related distributions. No known exploits are reported in the wild.

Detailed information about Red Hat Security Advisory: libvirt security update affecting Red Hat Product Security Red Hat. Get real-time updates, technical detai

Red Hat Security Advisory: libvirt security update - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2024:2236

https://access.redhat.com/security/updates/classification/#moderate

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.4_release_notes/index

2269672

RHEL-14611

RHEL-15267

RHEL-15288

RHEL-15316

RHEL-15480

RHEL-16870

RHEL-16878

RHEL-1717

RHEL-17596

RHEL-17841

RHEL-18165

RHEL-1833

RHEL-18439

RHEL-18782

RHEL-20337

RHEL-20444

A NULL pointer dereference flaw was found in the udevConnectListAllInterfaces() function in libvirt. (CVE-2024-2496)

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.

CVE-2024-2496 identifies a NULL pointer dereference vulnerability in the libvirt virtualization management library, specifically in the udevConnectListAllInterfaces() function. This function is responsible for enumerating network interfaces on the host system. The flaw manifests when a host interface is detached simultaneously as the virConnectListAllInterfaces API is invoked to collect the list of interfaces. Under these race conditions, the code attempts to dereference a NULL pointer, leading to a crash of the libvirt daemon process. Since libvirt is a critical component in many virtualization environments, its daemon crashing results in denial of service, disrupting management operations and potentially impacting hosted virtual machines. The vulnerability requires local access with low privileges and some user interaction, limiting remote exploitation. The CVSS 3.1 base score is 5.0 (medium severity), reflecting the limited scope and impact confined to availability. No confidentiality or integrity impact is noted. No patches are linked yet, but mitigation would involve updating libvirt or avoiding concurrent interface detach and enumeration operations. This vulnerability highlights a race condition and insufficient null pointer checks in libvirt's interface management code.

Detailed information about CVE-2024-2496: NULL Pointer Dereference. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-2496: NULL Pointer Dereference - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-2496: NULL Pointer Dereference


A NULL pointer dereference flaw was found in the udevConnectListAllInterfaces() function in libvirt. (CVE-2024-2496)CVE-2024-2496 0 A NULL pointer dereference vulnerability exists in the udevConnectListAllInterfaces() function of libvirt. This flaw occurs when detaching a host interface concurrently with collecting the list of interfaces via the virConnectListAllInterfaces API, potentially causing the libvirt daemon to crash and resulting in a denial of service. The issue affects multiple Red Hat Enterprise Linux 9 variants and related packages. A security update addressing this vulnerability is available from Red Hat. MediumVulnerability#gcve #csaf #cve-2024-2496 Join the discussion	GCVE Database	03/18/2024, 13:15:00 UTC Added: 06/25/2026, 21:47:36 UTC
CVE-2024-2496: NULL Pointer DereferenceCVE-2024-2496 0 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. MediumVulnerabilityUnited StatesGermanyUnited Kingdom+7#cve #cve-2024-2496 Join the discussion	CVE Database V5	03/18/2024, 12:54:17 UTC Added: 11/08/2025, 07:08:08 UTC

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