marked up to 4.0.9 Regular Expression resource consumption

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 (≈)
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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.
6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in marked up to 4.0.9. This vulnerability affects unknown code of the component Regular Expression Handler. The manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2022-21680. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in marked up to 4.0.9. It has been rated as problematic. This issue affects an unknown functionality of the component Regular Expression Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was disclosed 01/14/2022 as GHSA-rrrm-qjm4-v8hf. The advisory is shared at github.com. The identification of this vulnerability is CVE-2022-21680 since 11/16/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 4.0.10 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c4a3ccd344b6929afa8a1d50ac54a721e57012c0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-0691). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: marked 4.0.10
Patch: c4a3ccd344b6929afa8a1d50ac54a721e57012c0

Timelineinfo

11/16/2021 🔍
01/14/2022 +59 days 🔍
01/14/2022 +0 days 🔍
03/13/2026 +1519 days 🔍

Sourcesinfo

Advisory: GHSA-rrrm-qjm4-v8hf
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-21680 (🔍)
GCVE (CVE): GCVE-0-2022-21680
GCVE (VulDB): GCVE-100-190457
EUVD: 🔍

Entryinfo

Created: 01/14/2022 20:52
Updated: 03/13/2026 21:57
Changes: 01/14/2022 20:52 (52), 01/17/2022 21:08 (2), 03/13/2026 21:57 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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