PT-2020-6689 · Jetbrains+1 · Kotlin+1

Published 2020-12-06 · Updated 2026-02-25 · CVE-2020-29582

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions JetBrains Kotlin versions prior to 1.4.21

Description The issue is related to the use of a vulnerable Java API for temporary file and folder creation in JetBrains Kotlin, resulting in insecure permissions. This allows an attacker to read data from such files and list directories. The vulnerability is associated with incorrect default permission settings, which can be exploited by a remote attacker to disclose protected information.

Recommendations For versions prior to 1.4.21, update to version 1.4.21 or later to resolve the issue. As a temporary workaround, consider restricting access to temporary files and folders created by the vulnerable Java API to minimize the risk of exploitation.

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

BDU:2022-04645

CVE-2020-29582

GHSA-CQJ8-47CH-RVVQ

Affected Products

Debian

Kotlin

References · 21

• https://bdu.fstec.ru/vul/2022-04645 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-29582 · Security Note
• https://oracle.com/security-alerts/cpujan2022.html · Patch
• https://blog.jetbrains.com/blog/2021/02/03/jetbrains-security-bulletin-q4-2020 · Vendor Advisory
• https://oracle.com/security-alerts/cpuapr2022.html · Patch
• https://oracle.com//security-alerts/cpujul2021.html · Patch
• https://blog.jetbrains.com · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-cqj8-47ch-rvvq · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-29582 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-29582 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-29582 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-29582 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-29582 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-29582 · Vendor Advisory
• https://youtrack.jetbrains.com/issue/KT-42181 · Note