==========================================================================
Ubuntu Security Notice USN-7030-1
September 24, 2024

py7zr vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS

Summary:

py7zr could be made to create arbitrary files when extracting the contents
of a specially crafted 7z archive.

Software Description:
- py7zr: Pure Python 7-zip library

Details:

It was discovered that py7zr was vulnerable to path traversal attacks.
If a user or automated system were tricked into extracting a specially
crafted 7z archive, an attacker could possibly use this issue to write
arbitrary files outside the target directory on the host.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
   python3-py7zr                   0.11.3+dfsg-4ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-7030-1
   CVE-2022-44900

Package Information:
   https://launchpad.net/ubuntu/+source/py7zr/0.11.3+dfsg-4ubuntu0.1

Ubuntu 7030-1: py7zr Security Advisory Updates

September 24, 2024
py7zr could be made to create arbitrary files when extracting the contents of a specially crafted 7z archive.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: py7zr could be made to create arbitrary files when extracting the contents of a specially crafted 7z archive. Software Description: - py7zr: Pure Python 7-zip library Details: It was discovered that py7zr was vulnerable to path traversal attacks. If a user or automated system were tricked into extracting a specially crafted 7z archive, an attacker could possibly use this issue to write arbitrary files outside the target directory on the host.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS python3-py7zr 0.11.3+dfsg-4ubuntu0.1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7030-1

CVE-2022-44900

Severity
Ubuntu Security Notice USN-7030-1

Package Information

https://launchpad.net/ubuntu/+source/py7zr/0.11.3+dfsg-4ubuntu0.1

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