CVE-2017-2670: debian debian_linux Infinite Loop
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2017-2670DEBIAN-CVE-2017-2670GHSA-3x7h-5hfr-hvjm
Published 27-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2017-2670 is a high (CVSS 7.5) Infinite Loop vulnerability in debian debian_linux. EPSS estimates a 3.62% chance of exploitation in the next 30 days, higher than 89.3% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (CVE.org)EPSS score
3.62%
0%100%
Low · -0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7Timeline
- 27-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS.
CVSS metrics
6 scores · 5 sources · 2 versionsHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 5 agree
- NVDNIST7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.62%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
-0.05 pp
From 3.66% on 19-09-2026
19-09-202619-10-2026
EPSS score3.62%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- undertow< 1.4.18-1
- debian_linuxEOL9.0
Redhat2 products
- jboss_enterprise_application_platform6.0.0 | 7.0.0 | 7.1.0
- undertow< 1.3.28
[unknown]1 product
- undertow1.3.28.Final-redhat-4
Io.undertow1 product
- undertow-core< 1.3.28
Ubuntu1 product
- undertowAll versions (No fix recorded)
5 vendors · 7 products
