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CVE-2021-42340

DoS via memory leak with WebSocket connections

Published: Oct 14, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-772
7.5HIGH
NVD MITRE
EPSS Score
11.8%
Top 4.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Nuclei · OpenVAS

Description

The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-772

Affected Products

Oracle Corp.
commercial·USaka oracle
Managed File TransferOn-premWeb App
Enterprise Software / erp
Oracle Agile PLMOn-premWeb App
Enterprise Software / erp
Oracle SD-WAN EdgeOn-premNetwork Device
Networking Infrastructure / vpn-gateway
Communications Instant Messaging ServerOn-premWeb App
Communications / messaging-chat
Commerce Guided SearchOn-premWeb App
Enterprise Software / itsm-monitoring
Oracle Communications Cloud Native Core Service Communication Proxy (SCP)On-premNetwork Device
Networking Infrastructure / router-switch
Oracle Communications Element ManagerOn-prem
Communications
Oracle Communications Session Report ManagerOn-premWeb App
Enterprise Software / itsm-monitoring
Red Hat Inc.
commercial·USaka red hat
Red Hat JBoss FuseOn-prem
Operating Systems / linux-distro
Jboss Web ServerOn-prem
Operating Systems / linux-distro
OpenShift Application RuntimesOn-prem
Operating Systems / linux-distro
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
netapp
commercial·US
hci
Hardware Firmware
management services for element software
Hardware Firmware
Apache Software Foundation
oss-project·USaka apache foundation
Apache TomcatOn-premWeb App
Networking Infrastructure / load-balancer-proxy
Maven
package-ecosystem
org.apache.tomcat:tomcat
OSS Libraries
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
and 28 more affected products View all →

Exploitability

Official Patch Available
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References

https://lists.apache.org/thread.html/r83a35be60f06aca2065f188ee542b9099695d57ced2e70e0885f905c%40%3Cannounce.tomcat.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/r8097a2d1550aa78e585fc77e602b9046e6d4099d8d132497c5387784%40%3Ccommits.myfaces.apache.org%3E
lists.apache.org
https://www.debian.org/security/2021/dsa-5009
debian.org
and 31 more references View all →

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