---
id: CVE-2021-37136
title: >-
  The Bzip2 decompression decoder function doesn't allow setting size
  restrictions on the decompressed output data (which affects the allocation
  size used during decompression)
summary: >-
  The Bzip2 decompression decoder function doesn't allow setting size
  restrictions on the decompressed output data (which affects the allocation
  size used during decompression). All users of Bzip2Decoder are affected. The
  malicious input c…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
  - CWE-400
vendor: netty
product: netty
affected:
  - netty < 4.1.68
  - quarkus < 2.2.4
  - 'banking_apis >= 18.1, <= 18.3'
  - banking_apis = 19.1
  - banking_apis = 19.2
  - banking_apis = 20.1
  - banking_apis = 21.1
  - banking_digital_experience = 18.1
  - banking_digital_experience = 18.2
  - banking_digital_experience = 18.3
  - banking_digital_experience = 19.1
  - banking_digital_experience = 19.2
  - banking_digital_experience = 20.1
  - banking_digital_experience = 21.1
  - coherence = 12.2.1.4.0
  - coherence = 14.1.1.0.0
  - commerce_guided_search = 11.3.2
  - communications_brm_-_elastic_charging_engine < 12.0.0.4.6
  - communications_brm_-_elastic_charging_engine = 12
  - communications_cloud_native_core_binding_support_function = 1.10.0
  - communications_cloud_native_core_binding_support_function = 1.11.0
  - communications_cloud_native_core_network_slice_selection_function = 1.8.0
  - communications_cloud_native_core_policy = 1.15.0
  - communications_cloud_native_core_security_edge_protection_proxy = 1.7.0
  - communications_cloud_native_core_unified_data_repository = 1.15.0
  - 'communications_diameter_signaling_router >= 8.0.0.0, <= 8.5.0.2'
  - communications_instant_messaging_server = 8.1
  - helidon = 1.4.10
  - helidon = 2.4.0
  - peoplesoft_enterprise_peopletools = 8.48
  - peoplesoft_enterprise_peopletools = 8.57
  - peoplesoft_enterprise_peopletools = 8.58
  - peoplesoft_enterprise_peopletools = 8.59
  - webcenter_portal = 12.2.1.3.0
  - webcenter_portal = 12.2.1.4.0
  - oncommand_insight
  - debian_linux = 10.0
  - debian_linux = 11.0
patched:
  - netty 4.1.68
  - quarkus 2.2.4
  - communications_brm_-_elastic_charging_engine 12.0.0.4.6
published: '2021-10-19'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T22:17:10.643'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-37136'
references:
  - url: 'https://github.com/netty/netty/security/advisories/GHSA-grg4-wf29-r9vv'
    label: reefs@jfrog.com
  - url: >-
      https://lists.apache.org/thread.html/r06a145c9bd41a7344da242cef07977b24abe3349161ede948e30913d%40%3Ccommits.druid.apache.org%3E
    label: reefs@jfrog.com
  - url: >-
      https://lists.apache.org/thread.html/r5406eaf3b07577d233b9f07cfc8f26e28369e6bab5edfcab41f28abb%40%3Ccommits.druid.apache.org%3E
    label: reefs@jfrog.com
  - url: >-
      https://lists.apache.org/thread.html/r5e05eba32476c580412f9fbdfc9b8782d5b40558018ac4ac07192a04%40%3Ccommits.druid.apache.org%3E
    label: reefs@jfrog.com
  - url: >-
      https://lists.apache.org/thread.html/r75490c61c2cb7b6ae2c81238fd52ae13636c60435abcd732d41531a0%40%3Ccommits.druid.apache.org%3E
    label: reefs@jfrog.com
  - url: >-
      https://lists.apache.org/thread.html/rd262f59b1586a108e320e5c966feeafbb1b8cdc96965debc7cc10b16%40%3Ccommits.druid.apache.org%3E
    label: reefs@jfrog.com
  - url: >-
      https://lists.apache.org/thread.html/rfb2bf8597e53364ccab212fbcbb2a4e9f0a9e1429b1dc08023c6868e%40%3Cdev.tinkerpop.apache.org%3E
    label: reefs@jfrog.com
  - url: 'https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html'
    label: reefs@jfrog.com
  - url: 'https://security.netapp.com/advisory/ntap-20220210-0012/'
    label: reefs@jfrog.com
  - url: 'https://www.debian.org/security/2023/dsa-5316'
    label: reefs@jfrog.com
  - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html'
    label: reefs@jfrog.com
  - url: 'https://www.oracle.com/security-alerts/cpujan2022.html'
    label: reefs@jfrog.com
  - url: 'https://www.oracle.com/security-alerts/cpujul2022.html'
    label: reefs@jfrog.com
  - url: 'https://github.com/netty/netty/security/advisories/GHSA-grg4-wf29-r9vv'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r06a145c9bd41a7344da242cef07977b24abe3349161ede948e30913d%40%3Ccommits.druid.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r5406eaf3b07577d233b9f07cfc8f26e28369e6bab5edfcab41f28abb%40%3Ccommits.druid.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r5e05eba32476c580412f9fbdfc9b8782d5b40558018ac4ac07192a04%40%3Ccommits.druid.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r75490c61c2cb7b6ae2c81238fd52ae13636c60435abcd732d41531a0%40%3Ccommits.druid.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rd262f59b1586a108e320e5c966feeafbb1b8cdc96965debc7cc10b16%40%3Ccommits.druid.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rfb2bf8597e53364ccab212fbcbb2a4e9f0a9e1429b1dc08023c6868e%40%3Cdev.tinkerpop.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20220210-0012/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2023/dsa-5316'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpujan2022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpujul2022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.05908
epssPercentile: 0.93046
ingestedAt: '2026-10-08T23:16:47.324Z'
---

## Overview

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

## Affected

- `netty < 4.1.68`
- `quarkus < 2.2.4`
- `banking_apis >= 18.1, <= 18.3`
- `banking_apis = 19.1`
- `banking_apis = 19.2`
- `banking_apis = 20.1`
- `banking_apis = 21.1`
- `banking_digital_experience = 18.1`
- `banking_digital_experience = 18.2`
- `banking_digital_experience = 18.3`
- `banking_digital_experience = 19.1`
- `banking_digital_experience = 19.2`
- `banking_digital_experience = 20.1`
- `banking_digital_experience = 21.1`
- `coherence = 12.2.1.4.0`
- `coherence = 14.1.1.0.0`
- `commerce_guided_search = 11.3.2`
- `communications_brm_-_elastic_charging_engine < 12.0.0.4.6`
- `communications_brm_-_elastic_charging_engine = 12`
- `communications_cloud_native_core_binding_support_function = 1.10.0`
- `communications_cloud_native_core_binding_support_function = 1.11.0`
- `communications_cloud_native_core_network_slice_selection_function = 1.8.0`
- `communications_cloud_native_core_policy = 1.15.0`
- `communications_cloud_native_core_security_edge_protection_proxy = 1.7.0`
- `communications_cloud_native_core_unified_data_repository = 1.15.0`
- `communications_diameter_signaling_router >= 8.0.0.0, <= 8.5.0.2`
- `communications_instant_messaging_server = 8.1`
- `helidon = 1.4.10`
- `helidon = 2.4.0`
- `peoplesoft_enterprise_peopletools = 8.48`
- `peoplesoft_enterprise_peopletools = 8.57`
- `peoplesoft_enterprise_peopletools = 8.58`
- `peoplesoft_enterprise_peopletools = 8.59`
- `webcenter_portal = 12.2.1.3.0`
- `webcenter_portal = 12.2.1.4.0`
- `oncommand_insight`
- `debian_linux = 10.0`
- `debian_linux = 11.0`

## Remediation

Upgrade past the affected range:

- `netty 4.1.68`
- `quarkus 2.2.4`
- `communications_brm_-_elastic_charging_engine 12.0.0.4.6`
