High severity · published Aug 26, 2022
CVE-2021-3859
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2
7.5
CVSS
1.7%
EPSS
No
On KEV
Description
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
Cloud Secure Agent · Netapp
All versions, or not specified · source: NVD
JE
Jboss Enterprise Application Platform · Redhat
7.3; 7.4 · 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
7.4.10; 7.5.1 · source: NVD
UN
Undertow · Redhat
before 2.2.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3859
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3859
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2021-3859
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2010378
Patch
https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2
Third Party Advisory
https://github.com/undertow-io/undertow/pull/1296
Issue Tracking
https://issues.redhat.com/browse/UNDERTOW-1979
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221201-0004/
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