vulnerability

Rocky Linux: CVE-2024-4418: virt-rhel-and-virt-devel-rhel (RLSA-2024-4351)

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Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
May 8, 2024
Added
Jul 16, 2024
Modified
Mar 31, 2026

Description

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 pointer's 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.

Solutions

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References

Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.

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