CVE-2022-42969
Withdrawn Advisory: ReDoS in py library when used with subversion
Impact
### Withdrawn Advisory This advisory has been withdrawn because evidence does not suggest that CVE-2022-42969 is a valid, reproducible vulnerability. This link is maintained to preserve external references. ### Original Description The py library through 1.11.0 for Python allows remote attackers to conduct a ReDoS (Regular expression Denial of Service) attack via a Subversion repository with crafted info data, because the InfoSvnCommand argument is mishandled. The particular codepath in question is the regular expression at `py._path.svnurl.InfoSvnCommand.lspattern` and is only relevant when dealing with subversion (svn) projects. Notably the codepath is not used in the popular pytest project. The developers of the pytest package have released version `7.2.0` which removes their dependency on `py`. Users of `pytest` seeing alerts relating to this advisory may update to version `7.2.0` of `pytest` to resolve this issue. See https://github.com/pytest-dev/py/issues/287#issuecomment-1290407715 for additional context.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | py | <= 1.11.0 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Pytest | Py | through 1.11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/pytest-dev/py/blob/cb87a83960523a2367d0f19226a73aed4ce4291d/py/_path/svnurl.py#L316
- https://github.com/pytest-dev/py/issues/287
- https://news.ycombinator.com/item?id=34163710
- https://pypi.org/project/py
- https://github.com/advisories/GHSA-w596-4wvx-j9j6
- https://nvd.nist.gov/vuln/detail/CVE-2022-42969
- https://github.com/pytest-dev/py/issues/288
- https://github.com/pytest-dev/pytest/issues/10392
- https://github.com/pypa/advisory-database/tree/main/vulns/py/PYSEC-2022-42969.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/py/PYSEC-2022-43183.yaml