CVE-2019-25076

MEDIUM
5.8
CVSS Score
Published: September 8, 2022 at 10:08 PM UTC
Updated: June 17, 2026 at 02:31 AM UTC
1 product affected across 1 vendorOpenvswitch

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Severity
MEDIUM5.8
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.0.0 ≤ v ≤ 2.17.23.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

x_refsource_MISCThird Party Advisory
https://arxiv.org/abs/2011.09107
x_refsource_MISCExploitThird Party Advisory
https://sites.google.com/view/tuple-space-explosion
x_refsource_MISCExploitThird Party Advisory
https://www.youtube.com/watch?v=5cHpzVK0D28
x_refsource_MISCExploitThird Party Advisory
https://www.youtube.com/watch?v=DSC3m-Bww64

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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