Date: Thu, 9 Sep 2021 14:16:09 +0000 From: Jeremy Stanley <fungi@...goth.org> To: oss-security@...ts.openwall.com Subject: [OSSA-2021-006] Neutron: Routes middleware memory leak for nonexistent controllers (CVE-2021-40797) ======================================================================== OSSA-2021-006: Routes middleware memory leak for nonexistent controllers ======================================================================== :Date: September 09, 2021 :CVE: CVE-2021-40797 Affects ~~~~~~~ - Neutron: <16.4.1, >=17.0.0 <17.2.1, >=18.0.0 <18.1.1 Description ~~~~~~~~~~~ Slawek Kaplonski with Red Hat reported a vulnerability in Neutron's routes middleware. By making API requests involving nonexistent controllers, an authenticated user may cause the API worker to consume increasing amounts of memory, resulting in API performance degradation or denial of service. All Neutron deployments are affected. Patches ~~~~~~~ - https://review.opendev.org/807638 (Queens) - https://review.opendev.org/807637 (Rocky) - https://review.opendev.org/807636 (Stein) - https://review.opendev.org/807635 (Train) - https://review.opendev.org/807634 (Ussuri) - https://review.opendev.org/807633 (Victoria) - https://review.opendev.org/807632 (Wallaby) - https://review.opendev.org/807335 (Xena) Credits ~~~~~~~ - Slawek Kaplonski from Red Hat (CVE-2021-40797) References ~~~~~~~~~~ - https://launchpad.net/bugs/1942179 - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40797 Notes ~~~~~ - The stable/train, stable/stein, stable/rocky, and stable/queens branches are under extended maintenance and will receive no new point releases, but patches for them are provided as a courtesy. -- Jeremy Stanley Download attachment "signature.asc" of type "application/pgp-signature" (964 bytes)
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