CVE-2024-4418 — Libvirt: stack use-after-free in virnetclientioeventloop()

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Not supplied / Not supplied	affected 0 before 10.4.0
Red Hat / Red Hat Enterprise Linux 8	unaffected 8100020240606142719.489197e6 before *
Red Hat / Red Hat Enterprise Linux 8	unaffected 8100020240606142719.489197e6 before *
Red Hat / Red Hat Enterprise Linux 9	unaffected 0:10.0.0-6.6.el9_4 before *
Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support	unaffected 0:9.0.0-10.7.el9_2 before *
Red Hat / Red Hat Enterprise Linux 6	unknown
Red Hat / Red Hat Enterprise Linux 7	unknown
Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization	affected

CWE

CWE-562

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.