PT-2021-10901 · Unknown · Leo Editor

Yinxilo · Published 2021-09-22 · Updated 2022-10-26 · CVE-2020-23478

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Leo Editor version 6.2.1

Description The issue is related to a regular expression denial of service (ReDoS) vulnerability in the component plugins/importers/dart.py. This vulnerability was discovered in the Leo Editor.

Recommendations For Leo Editor version 6.2.1, consider disabling the dart.py importer until a patch is available to prevent potential exploitation of the ReDoS vulnerability.

Exploit

Fix

DoS

Weakness Enumeration

CWE-697

CWE-1333

Related Identifiers

CVE-2020-23478

GHSA-X38Q-XG2H-RXGX

PYSEC-2021-338

Affected Products

Leo Editor

References · 11

• 🔥 https://github.com/leo-editor/leo-editor/issues/1597 · Exploit
• https://osv.dev/vulnerability/PYSEC-2021-338 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-x38q-xg2h-rxgx · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-23478 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-23478 · Security Note
• https://github.com/leo-editor/leo-editor · Note
• https://github.com/leo-editor/leo-editor/commit/029833689060ee73f1bc1708cf4b182f0c66ec8e · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/leo/PYSEC-2021-338.yaml · Note
• https://cwe.mitre.org/data/definitions/1333.html · Note
• https://github.com/advisories/GHSA-x38q-xg2h-rxgx · Note
• https://t.me/cibsecurity/29251 · Telegram Post