CVE-2024-2496
CVE-2024-2496 is a medium-severity vulnerability in Redhat Libvirt with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.
Key facts
- Severity: Medium (CVSS 3.x base score 5.0)
- EPSS exploit prediction: 0% (16th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-27445
- Weakness: CWE-476
- Affected product: Redhat Libvirt
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2024-2496?
- CVE-2024-2496 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2024-2496 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-2496?
- CVE-2024-2496 primarily affects Redhat Libvirt. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2024-2496?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-2496 have an EU (EUVD) identifier?
- Yes. CVE-2024-2496 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-27445.
- When was CVE-2024-2496 published?
- CVE-2024-2496 was published on 2024-03-18 and last updated on 2026-06-17.
References
- https://access.redhat.com/errata/RHSA-2024:2236
- https://access.redhat.com/security/cve/CVE-2024-2496
- https://bugzilla.redhat.com/show_bug.cgi?id=2269672
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
Affected products (7)
- cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
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