Bug#1001037: kotlin: CVE-2020-29582

[Salvatore Bonaccorso]

Source: kotlin
Version: 1.3.31+~1.0.1+~0.11.12-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi Andrej,

Looking at
https://blog.jetbrains.com/blog/2021/02/03/jetbrains-security-bulletin-q4-2020/
there is an entry for Kotlin. It is said to be fixed in 1.4.21 but
there is little other information.

https://youtrack.jetbrains.com/issue/KT-42181 is not accessible
neither.

I'm filling this bug for tracking the issue:

CVE-2020-29582:
| In JetBrains Kotlin before 1.4.21, a vulnerable Java API was used for
| temporary file and folder creation. An attacker was able to read data
| from such files and list directories due to insecure permissions.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore