Overview
- 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 5.8
- Impact score
- 1.4
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
- Severity
- MEDIUM
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B1A15106-F7C3-4037-A6CE-2F84AC0F475B",
"versionEndIncluding": "2.17.2",
"versionStartIncluding": "2.0.0"
},
{
"criteria": "cpe:2.3:a:openvswitch:openvswitch:3.0.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "678E9EE4-E0F3-42BA-BE52-44C09115EA9B"
}
],
"operator": "OR"
}
]
}
]