SB2025102475 - openEuler 20.03 LTS SP4 update for python3

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Path traversal (CVE-ID: CVE-2024-12718)

The vulnerability allows a remote attacker to modify arbitrary files on the system.

The vulnerability exists due to input validation error in the tarfile module. A remote attacker can pass a specially crafted archive to the application and modify some file metadata (e.g. last modified) with filter="data" or file permissions (chmod) with filter="tar" of files outside the extraction directory.

2) Link following (CVE-ID: CVE-2025-4138)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an insecure link following issue when extracting data from an archive in the tarfile module. A remote attacker can pass a specially crafted archive to the application and overwrite arbitrary files outside the destination directory during extraction with filter="data"..

3) Link following (CVE-ID: CVE-2025-4330)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an insecure link following issue when extracting data from an archive in the tarfile module. A remote attacker can pass a specially crafted archive to the application and overwrite arbitrary files outside the destination directory.

4) Expected behavior violation (CVE-ID: CVE-2025-4435)

The vulnerability allows a remote attacker to change expected behavior. 

The vulnerability exists due to an error when using a TarFile.errorlevel = 0 and extracting with a filter the documented behavior. A remote attacker can force the application to extract files that were meant to be skipped. 

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-2538