Bugzilla – Bug 1214673
VUL-0: CVE-2023-40587: python-pyramid: Pyramid static view path traversal up one directory
Last modified: 2023-08-28 09:15:05 UTC
CVE-2023-40587 Pyramid is an open source Python web framework. A path traversal vulnerability in Pyramid versions 2.0.0 and 2.0.1 impacts users of Python 3.11 that are using a Pyramid static view with a full filesystem path and have a `index.html` file that is located exactly one directory above the location of the static view's file system path. No further path traversal exists, and the only file that could be disclosed accidentally is `index.html`. Pyramid version 2.0.2 rejects any path that contains a null-byte out of caution. While valid in directory/file names, we would strongly consider it a mistake to use null-bytes in naming files/directories. Secondly, Python 3.11, and 3.12 has fixed the underlying issue in `os.path.normpath` to no longer truncate on the first `0x00` found, returning the behavior to pre-3.11 Python, un an as of yet unreleased version. Fixes will be available in:Python 3.12.0rc2 and 3.11.5. Some workarounds are available. Use a version of Python 3 that is not affected, downgrade to Python 3.10 series temporarily, or wait until Python 3.11.5 is released and upgrade to the latest version of Python 3.11 series. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-40587 https://www.cve.org/CVERecord?id=CVE-2023-40587 https://github.com/Pylons/pyramid/commit/347d7750da6f45c7436dd0c31468885cc9343c85 https://github.com/Pylons/pyramid/security/advisories/GHSA-j8g2-6fc7-q8f8 https://github.com/python/cpython/issues/106242 https://github.com/python/cpython/pull/106816
Affected: - openSUSE:Factory/python-pyramid 2.0.1 - openSUSE:Backports:SLE-15-SP5/python-pyramid 1.9.1