CVE-2013-4399
libvirt: unprivileged user can crash libvirtd when ACLs are enabled
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · September 27, 2013
Updated · November 21, 2025
Description
The remoteClientFreeFunc function in daemon/remote.c in libvirt before 1.1.3, when ACLs are used, does not set an identity, which causes event handler removal to be denied and remote attackers to cause a denial of service (use-after-free and crash) by registering an event handler and then closing the connection.
Statement
Not vulnerable.
This issue did not affect the versions of libvirt package as shipped with Red Hat Enterprise Linux 5 and 6.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 5.5AV:A/AC:L/Au:S/C:N/I:N/A:C
CWE not specified