CVE-2019-25076

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.

CVSS v3.1

5.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

EPSS

1.90% chance of exploitation in the next 30 days, 78th percentile

Published

2022-09-08

Updated

2024-08-05

Proof-of-concept exploits (2)

• https://www.youtube.com/watch?v=5cHpzVK0D28
• https://www.youtube.com/watch?v=DSC3m-Bww64

References

• CVE Record
• NVD entry

Related

• CVE-2019-25070
• CVE-2019-25102
• CVE-2019-25067
• CVE-2019-25137
• CVE-2019-25066
• CVE-2019-25141