DescriptionAn issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
Debian Bugs924508

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
neutron (PTS)stretch2:9.1.1-3+deb9u1fixed
stretch (security)2:9.1.1-3+deb9u2fixed
buster, buster (security)2:13.0.7+git.2021.09.27.bace3d1890-0+deb10u1fixed
bullseye (security), bullseye2:17.2.1-0+deb11u1fixed
bookworm, sid2:20.0.0-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
neutronsourcejessie(not affected)


[jessie] - neutron <not-affected> (Vulnerable code not present, all supported protocols are handled correctly)

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