CVE-2021-40085

NameCVE-2021-40085
DescriptionAn issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.
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)
ReferencesDLA-3027-1, DSA-4983-1
Debian Bugs993398

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
neutron (PTS)jessie2014.1.3-12vulnerable
stretch (security), stretch (lts), stretch2:9.1.1-3+deb9u3fixed
buster, buster (security)2:13.0.7+git.2021.09.27.bace3d1890-0+deb10u1fixed
bullseye (security), bullseye2:17.2.1-0+deb11u1fixed
sid, bookworm2:20.2.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
neutronsourcejessie(unfixed)end-of-life
neutronsourcestretch2:9.1.1-3+deb9u3DLA-3027-1
neutronsourcebuster2:13.0.7+git.2021.09.27.bace3d1890-0+deb10u1DSA-4983-1
neutronsourcebullseye2:17.2.1-0+deb11u1DSA-4983-1
neutronsource(unstable)2:18.1.0-3993398

Notes

https://www.openwall.com/lists/oss-security/2021/08/31/2
https://launchpad.net/bugs/1939733

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