GHSA-gh8j-2pgf-x458

Infinite Loop in rencode

Source: GitHub Advisory Database (reviewed) High CVE-2021-40839

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	rencode	<= 1.0.6	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2021-40839 advisory
https://github.com/aresch/rencode/pull/29 web
https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75 web
https://github.com/advisories/GHSA-gh8j-2pgf-x458 advisory
https://github.com/aresch/rencode package
https://github.com/pypa/advisory-database/tree/main/vulns/rencode/PYSEC-2021-345.yaml web
https://lists.fedoraproject.org/archives/list/[email protected]/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6 web
https://lists.fedoraproject.org/archives/list/[email protected]/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY web
https://pypi.org/project/rencode/#history web
https://seclists.org/fulldisclosure/2021/Sep/16 web
https://security.netapp.com/advisory/ntap-20211008-0001 web