BIT-python-2024-5642
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- https://github.com/bitnami/vulndb/tree/main/data/python/BIT-python-2024-5642.json
- JSON Data
- https://api.osv.dev/v1/vulns/BIT-python-2024-5642
- Aliases
- Published
- 2024-07-01T10:21:43.501Z
- Modified
- 2024-07-29T07:57:13.977Z
- Summary
- [none]
- Details
-
CPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.setnpnprotocols() which is an invalid value for the underlying OpenSSL API. This results in a buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically a protocol name would be configured).
- References
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- http://www.openwall.com/lists/oss-security/2024/06/28/4
- https://github.com/python/cpython/commit/39258d3595300bc7b952854c915f63ae2d4b9c3e
- https://github.com/python/cpython/pull/23014
- https://jbp.io/2024/06/27/cve-2024-5535-openssl-memory-safety.html
- https://mail.python.org/archives/list/security-announce@python.org/thread/PLP2JI3PJY33YG6P5BZYSSNU66HASXBQ/
- https://github.com/python/cpython/issues/121227
- https://security.netapp.com/advisory/ntap-20240726-0005/