VDB-200654 · CVE-2021-3597 · GCVE-0-2021-3597

Undertow up to 2.2.8 HTTP/2SourceChannel race condition

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Undertow up to 2.2.8. It has been declared as problematic. This vulnerability affects unknown code of the component HTTP2SourceChannel. Such manipulation leads to race condition. This vulnerability is traded as CVE-2021-3597. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Undertow up to 2.2.8. It has been rated as problematic. Affected by this issue is some unknown processing of the component HTTP2SourceChannel. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is availability.

The weakness was shared 05/25/2022. The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-3597 since 06/11/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 2.0.35.SP1, 2.0.36.SP1, 2.0.39.Final, 2.2.6.SP1, 2.2.7.SP1 or 2.2.9.Final eliminates this vulnerability.

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Productinfo

Name

Undertow

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Undertow 2.0.35.SP1/2.0.36.SP1/2.0.39.Final/2.2.6.SP1/2.2.7.SP1/2.2.9.Final

Timelineinfo

06/11/2021 🔍
05/25/2022 +348 days 🔍
05/25/2022 +0 days 🔍
05/29/2022 +4 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-3597 (🔍)
GCVE (CVE): GCVE-0-2021-3597
GCVE (VulDB): GCVE-100-200654

Entryinfo

Created: 05/25/2022 09:50
Updated: 05/29/2022 16:39
Changes: 05/25/2022 09:50 (38), 05/29/2022 16:39 (1)
Complete: 🔍
Cache ID: 216::103