Wiz
Vulnerability DatabaseCVE-2022-34749

CVE-2022-34749: 
Python vulnerability analysis and mitigation

Overview

CVE-2022-34749 affects mistune through version 2.0.2, a markdown parser library. The vulnerability was discovered in July 2022 and involves the implementation of inline markup support using regular expressions that can lead to catastrophic backtracking in certain edge cases (NVD).

Technical details

The vulnerability stems from the implementation of inline markup support using regular expressions that can trigger high amounts of backtracking when processing certain edge cases. This issue is specifically related to the asterisk emphasis regex implementation. The vulnerability has been assigned a CVSS v3.1 Base Score of 7.5 (High) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating a high severity issue with potential availability impacts (NVD).

Impact

The primary impact of this vulnerability is on system availability. When exploited, the catastrophic backtracking in the regular expression processing can lead to denial of service conditions by consuming excessive system resources (NVD).

Mitigation and workarounds

The vulnerability has been fixed in version 2.0.3 of mistune. Users should upgrade to this or a later version to address the security issue. The fix specifically addresses the asterisk emphasis regex implementation (GitHub Release, GitHub Patch).

Additional resources

Source: This report was generated using AI

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues

Cloud threat landscape

Cloud threat landscape

A comprehensive threat intelligence database of cloud security incidents, actors, tools and techniques

PEACH

PEACH

A step-by-step framework for modeling and improving SaaS and PaaS tenant isolation

Get a personalized demo

Ready to see Wiz in action?

“Best User Experience I have ever seen, provides full visibility to cloud workloads.”
David EstlickCISO
“Wiz provides a single pane of glass to see what is going on in our cloud environments.”
Adam FletcherChief Security Officer
“We know that if Wiz identifies something as critical, it actually is.”
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo