CVE-2017-17051

NameCVE-2017-17051
DescriptionAn issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler 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)
NVD severitymedium (attack range: remote)
Debian Bugs883621

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nova (PTS)jessie2014.1.3-11fixed
stretch (security), stretch2:14.0.0-4+deb9u1fixed
sid2:18.0.3-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
novasource(unstable)2:16.0.3-6medium883621
novasourcejessie(not affected)
novasourcestretch(not affected)
novasourcewheezy(not affected)

Notes

[stretch] - nova <not-affected> (Fix for CVE-2017-16239 not applied and not affecting 14.x.y)
[jessie] - nova <not-affected> (Vulnerable code not present)
[wheezy] - nova <not-affected> (Vulnerable code not present)
http://www.openwall.com/lists/oss-security/2017/12/05/5
https://launchpad.net/bugs/1732976

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