CVE catalog

CVE-2017-7543

neutron: CVE-2017-7543

Severity: Medium · CVSS 5.3CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Published: Aug 8, 2017, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.84% · Oct 25, 2026

A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	neutron	sid	`2:29.0.0-9`	not affected
Debian	neutron	forky	`2:28.0.1-2`	not affected
Debian	neutron	trixie	`2:26.0.3-0+deb13u3`	not affected
Debian	neutron	trixie-security	`2:26.0.3-0+deb13u3`	not affected
Debian	neutron	bookworm	`2:21.0.0-7`	not affected
Debian	neutron	bookworm-security	`2:21.0.0-7+deb12u1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	neutron	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	neutron	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	neutron	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	neutron	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[neutron-api]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-common]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-dhcp-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-doc]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-l3-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-linuxbridge-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-macvtap-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-metadata-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-metering-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-openvswitch-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-ovn-metadata-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-plugin-nec-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-rpc-server]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-server]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[neutron-sriov-agent]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
[python3-neutron]Unknown
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  dsa · neutron · debian · bookworm

Observed: Oct 23, 2026, 5:30:45 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX]