CVE-2026-27448

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for...

CVE-2026-27459: Buffer Copy without Checking Size of Input

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to setcookiegeneratecallback returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0....

pyOpenSSL 安全漏洞

pyOpenSSL is an open-source Python library developed by the Python Cryptographic Authority. Versions of pyOpenSSL from 22.0.0 to 26.0.0 had security vulnerabilities. These vulnerabilities were caused by an issue where the cookie value returned by setcookiegeneratecallback was too long, leading to...

pyOpenSSL 安全漏洞

pyOpenSSL is an open-source Python library that encapsulates OpenSSL from the Python Cryptographic Authority project. Versions of pyOpenSSL from 0.14.0 to 26.0.0 contained security vulnerabilities. These vulnerabilities stemmed from unhandled exceptions in the settlsextservername Callback functio...

pyOpenSSL DTLS cookie callback buffer overflow

If a user provided callback to setcookiegeneratecallback returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Cookie values that are too long are now rejected...

Buffer Overflow

Overview Affected versions of this package are vulnerable to Buffer Overflow via the setcookiegeneratecallback function. An attacker can cause a buffer overflow by providing a callback that returns a cookie value greater than 256 bytes. Note: This is only exploitable if the application explicitly...

Not Failing Securely ('Failing Open')

Overview Affected versions of this package are vulnerable to Not Failing Securely 'Failing Open' via the settlsextservernamecallback function. An attacker can bypass security-sensitive checks by causing an unhandled exception in the callback, which results in the connection being accepted. If a...

GHSA-VP96-HXJ8-P424 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

If a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Unhandled exceptions now result in rejecting the...

Python Cryptographic Authority: Fail-Open in set_tlsext_servername_callback on pyopenssl via unhandled exceptions leads to security bypass

A vulnerability was discovered in the pyopenssl library's handling of the Server Name Indication SNI callback settlsextservernamecallback. The internal wrapper for this callback catches all Python exceptions raised by user code but returns 0 Success/SSLTLSEXTERROK to the underlying OpenSSL engine...

EUVD-2017-0139

Malware in sbrugna...

EUVD-2013-0029

Malware in sbrugna...

EUVD-2018-0123

Malware in sbrugna...

SUSE SLES12 Security Update : python-pyOpenSSL (SUSE-SU-2024:3749-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:3749-1 advisory. - Fixed error caused by a regression in fix for CVE-2018-1000807 bsc1231700 Tenable has extracted the preceding description block directly...

SUSE: Security Advisory (SUSE-SU-2024:3749-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issues: Fixed error caused by a regression in fix for CVE-2018-1000807 bsc1231700 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch". Alternatively you can run...

SUSE-SU-2024:3749-1 Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issues: - Fixed error caused by a regression in fix for CVE-2018-1000807 bsc1231700...

RHSA-2019:0085 Red Hat Security Advisory: pyOpenSSL security and bug fix update

Bulletin has no description...

OPENSUSE-SU-2024:14154-1 python310-pyOpenSSL-24.1.0-1.2 on GA media

These are all security issues fixed in the python310-pyOpenSSL-24.1.0-1.2 package on the GA media of openSUSE Tumbleweed...

OPENSUSE-SU-2024:10214-1 python-pyOpenSSL-16.2.0-1.3 on GA media

These are all security issues fixed in the python-pyOpenSSL-16.2.0-1.3 package on the GA media of openSUSE Tumbleweed...

RHEL 5 : pyopenssl (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched. - pyOpenSSL: Failure to release memory before removing last reference in PKCS 12 Store CVE-2018-1000808 Note that...