CVE-2011-4600

medium

Published 2016-04-14 · Modified 2026-05-06

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

5.9

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

Description

The networkReloadIptablesRules function in network/bridge_driver.c in libvirt before 0.9.9 does not properly handle firewall rules on bridge networks when libvirtd is restarted, which might allow remote attackers to bypass intended access restrictions via a (1) DNS or (2) DHCP query.

Predictions

Exploit likelihood

69%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Ubuntu Affected 4 releases

Version	Status	Fixed in
15.10	Affected	—
15.04	Affected	—
14.04	Affected	—
12.04	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`0.9.9-1`
sid	Fixed	`0.9.9-1`
forky	Fixed	`0.9.9-1`
bullseye	Fixed	`0.9.9-1`
bookworm	Fixed	`0.9.9-1`

Application impact

Vendor	Product	Versions	Fixed
redhat	libvirt	`0.9.8`

References

CWEs

CWE-284

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.