Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2024-4418

Return of Stack Variable Address

Published: May 08, 2024 | Modified: Feb 25, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
6.2 MODERATE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2024-4418
CWEhttps://cwe.mitre.org/data/definitions/562.html

A race condition leading to a stack use-after-free flaw was found in libvirt. Due to a bad assumption in the virNetClientIOEventLoop() method, the data pointer to a stack-allocated virNetClientIOEventData structure ended up being used in the virNetClientIOEventFD callback while the data pointers stack frame was concurrently being freed when returning from virNetClientIOEventLoop(). The virtproxyd daemon can be used to trigger requests. If libvirt is configured with fine-grained access control, this issue, in theory, allows a user to escape their otherwise limited access. This flaw allows a local, unprivileged user to access virtproxyd without authenticating. Remote users would need to authenticate before they could access it.

Weakness

A function returns the address of a stack variable, which will cause unintended program behavior, typically in the form of a crash.

Affected Software

NameVendorStart VersionEnd Version
Red Hat Enterprise Linux 8RedHatvirt-devel:rhel-8100020240606142719.489197e6*
Red Hat Enterprise Linux 8RedHatvirt:rhel-8100020240606142719.489197e6*
Red Hat Enterprise Linux 9RedHatlibvirt-0:10.0.0-6.6.el9_4*
Red Hat Enterprise Linux 9.2 Extended Update SupportRedHatlibvirt-0:9.0.0-10.7.el9_2*
LibvirtUbuntudevel*
LibvirtUbuntunoble*
LibvirtUbuntuoracular*

Potential Mitigations

References

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