CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1CVE-2023-36632
https://notcve.org/view.php?id=CVE-2023-36632
The legacy email.utils.parseaddr function in Python through 3.11.4 allows attackers to trigger "RecursionError: maximum recursion depth exceeded while calling a Python object" via a crafted argument. This argument is plausibly an untrusted value from an application's input data that was supposed to contain a name and an e-mail address. NOTE: email.utils.parseaddr is categorized as a Legacy API in the documentation of the Python email package. Applications should instead use the email.parser.BytesParser or email.parser.Parser class. NOTE: the vendor's perspective is that this is neither a vulnerability nor a bug. • https://docs.python.org/3/library/email.html https://docs.python.org/3/library/email.utils.html https://github.com/Daybreak2019/PoC_python3.9_Vul/blob/main/RecursionError-email.utils.parseaddr.py https://github.com/python/cpython/issues/103800 • CWE-674: Uncontrolled Recursion •
CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 1CVE-2023-27043 – python: Parsing errors in email/_parseaddr.py lead to incorrect value in email address part of tuple
https://notcve.org/view.php?id=CVE-2023-27043
The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python. • http://python.org https://github.com/python/cpython/issues/102988 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZAEFSFZDNBNJPNOUTLG5COISGQDLMGV https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/75DTHSTNOFFNAWHXKMDXS7EJWC6W2FUC https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ARI7VDSNTQVXRQFM6IK5GSSLEIYV4VZH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQAKLUJMHFGVBRDPEY5 • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 13EXPL: 4CVE-2023-24329 – python: urllib.parse url blocklisting bypass
https://notcve.org/view.php?id=CVE-2023-24329
An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters. A flaw was found in the Python package. An issue in the urllib.parse component could allow attackers to bypass blocklisting methods by supplying a URL that starts with blank characters.This may lead to compromised Integrity. • https://github.com/JawadPy/CVE-2023-24329-Exploit https://github.com/Pandante-Central/CVE-2023-24329-codeql-test https://github.com/H4R335HR/CVE-2023-24329-PoC https://github.com/python/cpython/issues/102153 https://github.com/python/cpython/pull/99421 https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PEVICI7YNGGMSL3UCMWGE66QFLATH72 https://lists.fedoraproject.org/archives/list/package-announ • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 31EXPL: 1CVE-2022-45061 – python: CPU denial of service via inefficient IDNA decoder
https://notcve.org/view.php?id=CVE-2022-45061
An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16. • https://github.com/python/cpython/issues/98433 https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2AOUKI72ACV6CHY2QUFO6VK2DNMVJ2MB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35YDIWCUMWTMDBWFRAVENFH6BLB65D6S https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4WBZJNS • CWE-400: Uncontrolled Resource Consumption CWE-407: Inefficient Algorithmic Complexity •
CVSS: 7.4EPSS: 0%CPEs: 17EXPL: 0CVE-2021-28861 – python: open redirection vulnerability in lib/http/server.py may lead to information disclosure
https://notcve.org/view.php?id=CVE-2021-28861
Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states "Warning: http.server is not recommended for production. It only implements basic security checks." ** EN DISPUTA ** Python versiones 3.x hasta la versión 3.10, presenta una vulnerabilidad de redireccionamiento abierto en el archivo lib/http/server.py debido a una falta de protección contra múltiples (/) al principio de la ruta URI que puede conllevar a una divulgación de información. NOTA: esto es discutido por un tercero porque la página de documentación http.server.html dice "Advertencia: http.server no se recomienda para producción. Sólo implementa controles de seguridad básicos". • https://bugs.python.org/issue43223 https://github.com/python/cpython/pull/24848 https://github.com/python/cpython/pull/93879 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TRINJE3INWDVIHIABW4L2NP3RUSK7BJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LTSPFIULY2GZJN3QYNFVM4JSU6H4D6J https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OABQ5CMPQETJLFHROAXDIDXCMDTNVYG https://lists.fedoraproject.org/archives&# • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •