Medium severity · published May 24, 2022
CVE-2021-3629
A flaw was found in Undertow
5.9
CVSS
1.3%
EPSS
No
On KEV
Description
A flaw was found in Undertow. A potential security issue in flow control handling by the browser over http/2 may potentially cause overhead or a denial of service in the server. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.40.Final and prior to 2.2.11.Final.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Active IQ Unified Manager · Netapp
All versions, or not specified · source: NVD
IN
Integration · Redhat
All versions, or not specified · source: NVD
JE
Jboss Enterprise Application Platform · Redhat
7.4; 7.3 · source: NVD
OI
Oncommand Insight · Netapp
All versions, or not specified · source: NVD
OW
Oncommand Workflow Automation · Netapp
All versions, or not specified · source: NVD
SS
Single Sign-on · Redhat
All versions, or not specified · source: NVD
UN
Undertow · Redhat
before 2.0.40; 2.2.0 before 2.2.11 · source: NVD
WC
Wildfly Core · Redhat
before 17.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3629
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3629
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1977362
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220729-0008/
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