OPENSUSE-SU-2026:20897-1 Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issue - CVE-2026-40475: improper input handling of null bytes can lead to silent data truncation and security-state inconsistency bsc1262803...

SUSE-SU-2026:22025-1 Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issue - CVE-2026-40475: improper input handling of null bytes can lead to silent data truncation and security-state inconsistency bsc1262803...

pyOpenSSL 22.0.x < 26.0.0 Buffer Overflow

The version of pyOpenSSL installed on the remote host is prior to 26.0.0. It is, therefore, affected by a buffer overflow vulnerability: - 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...

USN-8335-1: pyOpenSSL vulnerability

It was discovered that pyOpenSSL incorrectly handled exceptions in the tlsextservername callback. This could result in connections being accepted after an exception, contrary to expectations...

Security Bulletin: Multiple Vulnerabilities in pyOpenSSL bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging include the pyOpenSSL library, which is susceptible to a critical buffer overflow and a "fail-open" security bypass. A classic buffer overflow vulnerability exists when a user-provided cookie generation callback returns a value...

SUSE-SU-2026:21619-1 Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issue - CVE-2026-40475: improper input handling of null bytes can lead to silent data truncation and security-state inconsistency bsc1262803...

SUSE-SU-2026:21617-1 Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issue...

Important: Red Hat Security Advisory: Satellite 6.16.8 Async Update

An update is now available for Red Hat Satellite 6.16 for RHEL 8 and RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

Important: Red Hat Security Advisory: Satellite 6.17.8 Async Update

A new release is now available for Red Hat Satellite 6.17 for RHEL 9. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity to provide public Internet access to their servers or other client systems. It performs...

pyOpenSSL: DTLS cookie callback buffer overflow

A flaw was found in pyOpenSSL. The setcookiegeneratecallback callback function can be used to generate DTLS cookies. When the callback returns a cookie string or byte sequence longer than 256 bytes, a buffer overflow can be triggered due to a missing bounds checking before copying the data to a...

Important: Red Hat Security Advisory: Satellite 6.18.5 Async Update

A new release is now available for Red Hat Satellite 6.18 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

pyOpenSSL: DTLS cookie callback buffer overflow

A flaw was found in pyOpenSSL. The setcookiegeneratecallback callback function can be used to generate DTLS cookies. When the callback returns a cookie string or byte sequence longer than 256 bytes, a buffer overflow can be triggered due to a missing bounds checking before copying the data to a...

RHEL 8 / 9 : Satellite 6.16.8 Async Update (Important) (RHSA-2026:14874)

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:14874 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessi...

[SECURITY] Fedora 43 Update: pyOpenSSL-26.1.0-1.fc43

High-level wrapper around a subset of the OpenSSL library, includes among oth ers SSL.Connection objects, wrapping the methods of Python's portable sockets Callbacks written in Python Extensive error-handling mechanism, mirroring OpenSSL's error codes...

Fedora 43 : pyOpenSSL (2026-bc62ef0a6a)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-bc62ef0a6a advisory. Update to pyOpenSSL 26.1.0 This update adds support for cryptography v47 and fixes a single security issue: - Fixed X509Name field setters to correctly pass...

Fedora 44 : pyOpenSSL (2026-05d463c932)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-05d463c932 advisory. Update to pyOpenSSL 26.1.0 This update adds support for cryptography v47 and fixes a single security issue: - Fixed X509Name field setters to correctly pass...

pyOpenSSL: DTLS cookie callback buffer overflow

A flaw was found in pyOpenSSL. The setcookiegeneratecallback callback function can be used to generate DTLS cookies. When the callback returns a cookie string or byte sequence longer than 256 bytes, a buffer overflow can be triggered due to a missing bounds checking before copying the data to a...

Security Bulletin: pyOpenSSL TLS SNI Callback Exception Handling Flaw Allows Security Bypass

Summary 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...

Important: Red Hat Security Advisory: RHUI 4.11.4 security update - python-pyOpenSSL

An updated version of Red Hat Update Infrastructure RHUI is now available. RHUI 4.11.4 resolves a security vulnerability in pyOpenSSL. Red Hat Update Infrastructure RHUI provides a highly scalable and redundant framework for managing repositories and content. It also allows cloud providers to...

Security update for python-pyOpenSSL

This update for python-pyOpenSSL fixes the following issue: CVE-2026-27448: unhandled exception can result in connection not being cancelled bsc1259804. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...