Netty Decompression Bzip2Decoder resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Netty. It has been classified as problematic. Affected is the function Bzip2Decoder of the component Decompression Handler. Performing a manipulation results in resource consumption. This vulnerability was named CVE-2021-37136. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Netty (unknown version). It has been classified as problematic. This affects the function Bzip2Decoder of the component Decompression Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The weakness was presented 10/19/2021 as GHSA-grg4-wf29-r9vv. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2021-37136 since 07/20/2021. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 240509 (RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.3.14 Security update (Important) (RHSA-2025:9583)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (240509). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 240509
Nessus Name: RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.3.14 Security update (Important) (RHSA-2025:9583)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/20/2021 🔍
10/19/2021 +91 days 🔍
10/19/2021 +0 days 🔍
06/26/2025 +1346 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-grg4-wf29-r9vv
Status: Confirmed

CVE: CVE-2021-37136 (🔍)
GCVE (CVE): GCVE-0-2021-37136
GCVE (VulDB): GCVE-100-184623

Entryinfo

Created: 10/19/2021 18:42
Updated: 06/26/2025 08:12
Changes: 10/19/2021 18:42 (37), 10/23/2021 08:14 (1), 10/23/2021 08:16 (1), 06/26/2025 08:12 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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