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NVD / CVE Program· CNA redhat

CVE-2024-2496: Libvirt: null pointer dereference in udevconnectlistallinterfaces()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.25% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: gitlab.com/libvirt/libvirt/ libvirt 9.7.0.

Low priority for now. Upgrade to gitlab.com/libvirt/libvirt/ libvirt 9.7.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Mar 18, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · redhat
5.0
0.5 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-2496

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatlibvirt
redhatenterprise linux
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • redhat enterprise linux6.0
  • redhat enterprise linux7.0
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0
  • redhat libvirtbefore 9.8.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • gitlab.com/libvirt/libvirt/ libvirt

    • 9.0.0 and later · before 9.7.0affected · semver

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • 0:10.0.0-6.el9_4 and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:9libvirtbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-clientbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-client-qemubefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemonbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-commonbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-config-networkbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-config-nwfilterbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-interfacebefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-networkbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-nodedevbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-nwfilterbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-qemubefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-secretbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storagebefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-corebefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-diskbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-iscsibefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-logicalbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-mpathbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-rbdbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-driver-storage-scsibefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-kvmbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-lockbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1
AlmaLinux:9libvirt-daemon-logbefore 10.0.0-6.el9_4.alma.110.0.0-6.el9_4.alma.1

+70

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-5008libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string, which allows remote
    40Plan
  • CVE-2020-14339A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process.
    35Monitor
  • CVE-2019-10132A vulnerability was found in libvirt >= 4.1.0 in the virtlockd-admin.socket and virtlogd-admin.socket systemd units.
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2023-2700May 15, 2023 · A vulnerability was found in libvirt.
    22Monitor
  • ← EarlierCVE-2023-3750Jul 24, 2023 · Libvirt: improper locking in virstoragepoolobjlistsearch may lead to denial of service
    21Monitor
  • Later →CVE-2024-8235Aug 30, 2024 · Libvirt: crash of virtinterfaced via virconnectlistinterfaces()
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
gitlab.com/libvirt/libvirt/ libvirt9.7.0Vendor (CNA)
almalinux:libvirt10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-client10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-client-qemu10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-common10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-config-network10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-config-nwfilter10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-driver-interface10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-driver-network10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-driver-nodedev10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-driver-nwfilter10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:libvirt-daemon-driver-qemu10.0.0-6.el9_4.alma.1 · AlmaLinux:9Package registry (OSV)
debian:libvirt9.0.0-4+deb12u1 · Debian:12Package registry (OSV)
opensuse:libvirt9.0.0-150500.6.20.1 · openSUSE:Leap 15.5Package registry (OSV)
red hat:libvirt0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-client0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-client-debuginfo0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-client-qemu0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-common0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-common-debuginfo0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-config-network0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-config-nwfilter0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-debuginfo0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-driver-interface0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:libvirt-daemon-driver-interface-debuginfo0:10.0.0-6.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
suse:libvirt5.1.0-13.39.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5Package registry (OSV)
suse:libvirt9.0.0-150500.6.20.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-8235165 days apartLibvirt: crash of virtinterfaced via virconnectlistinterfaces()
    24Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records