CVE-2021-37137

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Summary

CVECVE-2021-37137
StatePUBLISHED
AssignerJFROG
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-19 15:15:07 UTC
Updated2026-10-08 22:17:10 UTC
DescriptionThe Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.065650000 probability, percentile 0.936690000 (date 2026-10-11)

Problem Types: CWE-400 | CWE-400 CWE-400

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 11.0 All All All
Application Netapp Oncommand Insight - All All All
Application Netty Netty All All All All
Application Oracle Banking Apis 19.1 All All All
Application Oracle Banking Apis 19.2 All All All
Application Oracle Banking Apis 20.1 All All All
Application Oracle Banking Apis 21.1 All All All
Application Oracle Banking Apis All All All All
Application Oracle Banking Digital Experience 18.1 All All All
Application Oracle Banking Digital Experience 18.2 All All All
Application Oracle Banking Digital Experience 18.3 All All All
Application Oracle Banking Digital Experience 19.1 All All All
Application Oracle Banking Digital Experience 19.2 All All All
Application Oracle Banking Digital Experience 20.1 All All All
Application Oracle Banking Digital Experience 21.1 All All All
Application Oracle Commerce Guided Search 11.3.2 All All All
Application Oracle Communications Brm - Elastic Charging Engine All All All All
Application Oracle Communications Brm - Elastic Charging Engine 12.0.0.5.0 All All All
Application Oracle Communications Cloud Native Core Binding Support Function 1.10.0 All All All
Application Oracle Communications Diameter Signaling Router All All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.57 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.58 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.59 All All All
Application Oracle Webcenter Portal 12.2.1.3.0 All All All
Application Oracle Webcenter Portal 12.2.1.4.0 All All All
Application Quarkus Quarkus All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA The Netty Project Netty affected unspecified 4.1.68Final custom Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread.html/r06a145c9bd41a7344da242cef07977b24abe3349161ede94... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Oracle Critical Patch Update Advisory - April 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
lists.apache.org/thread.html/r75490c61c2cb7b6ae2c81238fd52ae13636c60435abcd732... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
lists.apache.org/thread.html/rfb2bf8597e53364ccab212fbcbb2a4e9f0a9e1429b1dc080... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
[SECURITY] [DLA 3268-1] netty security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-5316-1 netty af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
SnappyFrameDecoder doesn't restrict chunk length any may buffer skippable chunks in an unnecessary way · Advisory · netty/netty · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
Oracle Critical Patch Update Advisory - January 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Oracle Critical Patch Update Advisory - July 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
February 2022 Apache Netty Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
lists.apache.org/thread.html/rd262f59b1586a108e320e5c966feeafbb1b8cdc96965debc... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
lists.apache.org/thread.html/r5e05eba32476c580412f9fbdfc9b8782d5b40558018ac4ac... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
lists.apache.org/thread.html/r5406eaf3b07577d233b9f07cfc8f26e28369e6bab5edfcab... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 181469 Debian Security Update for netty (DLA 3268-1)
  • 181471 Debian Security Update for netty (DSA 5316-1)
  • 181980 Debian Security Update for netty (CVE-2021-37137)
  • 199574 Ubuntu Security Notification for Netty Vulnerabilities (USN-6049-1)
  • 240458 Red Hat Update for JBoss Enterprise Application Platform 7.4.5 on RHEL 7 (RHSA-2022:4918)
  • 240459 Red Hat Update for JBoss Enterprise Application Platform 7.4.5 on RHEL 8 (RHSA-2022:4919)
  • 240925 Red Hat Update for Satellite 6.12 (RHSA-2022:8506)
  • 376257 Oracle PeopleSoft Enterprise PeopleTools Product Multiple Vulnerabilities (CPUJAN2022)
  • 376549 Oracle Coherence April 2022 Critical Patch Update (CPUAPR2022)
  • 960485 Rocky Linux Security Update for Satellite (RLSA-2022:8506)
  • 980257 Java (maven) Security Update for io.netty:netty-codec (GHSA-9vjp-v76f-g363)

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