Debian Bug report logs -
#1021740
openvswitch: CVE-2019-25076
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Bug#1021740; Package src:openvswitch.
(Thu, 13 Oct 2022 19:21:06 GMT) (full text, mbox, link).
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New Bug report received and forwarded. Copy sent to team@security.debian.org, Debian OpenStack <team+openstack@tracker.debian.org>.
(Thu, 13 Oct 2022 19:21:06 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Source: openvswitch
X-Debbugs-CC: team@security.debian.org
Severity: important
Tags: security
Hi,
The following vulnerability was published for openvswitch.
CVE-2019-25076[0]:
| The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through
| 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service
| (delays of legitimate traffic) via crafted packet data that requires
| excessive evaluation time within the packet classification algorithm
| for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.
https://arxiv.org/abs/2011.09107
https://sites.google.com/view/tuple-space-explosion
https://dl.acm.org/doi/10.1145/3359989.3365431
https://www.youtube.com/watch?v=5cHpzVK0D28
https://www.youtube.com/watch?v=DSC3m-Bww64
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2019-25076
https://www.cve.org/CVERecord?id=CVE-2019-25076
Please adjust the affected versions in the BTS as needed.
Added tag(s) upstream.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org.
(Thu, 13 Oct 2022 20:57:02 GMT) (full text, mbox, link).
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