Important: Red Hat Security Advisory: ruby:2.5 security update

An update for the ruby:2.5 module is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

SUSE-SU-2026:2195-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 bsc1243603. - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013. -...

PT-2026-56044

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.6.0 through 2.6.20 OpenVPN versions 2.7 alpha1 through 2.7.4 Description An incomplete guard in the tls-crypt-v2 mechanism allows remote authenticated peers to trigger a use-after-free condition during TLS session promotion...

AlmaLinux 9 : ruby:4.0 (ALSA-2026:33577)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:33577 advisory. ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol...

RHEL 9 : skopeo (RHSA-2026:34197)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:34197 advisory. The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and...

openvpn -- multiple vulnerabilities

The OpenVPN community project team reports: ... OpenVPN 2.7.5 ... is a bugfix release fixing several security issues: Fix use-after-free bug in ackwritebuf, triggerable by a well-timed sequence of control channel + authentication packets CVE-2026-12996 Fix use-after-free bug in tlswrapreneg,...

AlmaLinux 10 : ruby4.0 (ALSA-2026:33540)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:33540 advisory. ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol...

RockyLinux 8 : container-tools:rhel8 (RLSA-2026:33722)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:33722 advisory. net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial...

RHEL 8 : ruby:2.5 (RHSA-2026:34076)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:34076 advisory. Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system...

FreeBSD : FreeBSD -- Remote DOS via uninitialized memory access in KTLS receive (fb1bf2ae-74e2-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the fb1bf2ae-74e2-11f1-958d-bc241121aa0a advisory. When building the iovec array for a received TLS 1.2 CBC record, ktlsocftlscbcdecrypt incremented the...

RockyLinux 9 : ruby:3.3 (RLSA-2026:33576)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:33576 advisory. ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol...

PT-2026-54772

Name of the Vulnerable Software and Affected Versions erlang quic versions prior to 1.4.4 Description The QUIC client fails to authenticate the server during the TLS 1.3 handshake. Specifically, the CertificateVerify signature is not checked, the certificate chain is not validated, and the hostna...

Alibaba Cloud Linux 3 : 0172: osbuild-composer (ALINUX3-SA-2026:0172)

"The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0172 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-4427: No description is availabl...

RHEL 9 : Satellite 6.19.2 Async Update (Important) (RHSA-2026:34365)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:34365 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity t...

RHEL 8 : container-tools:rhel8 (RHSA-2026:33722)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:33722 advisory. The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc. Security Fixes: net/url:...

BIT-ENVOY-2026-47778 Envoy: Embedded NUL in TLS DNS SAN Truncation in the Default TLS Certificate Validator. (Auth Bypass)

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a structural flaw was identified in DefaultCertValidator::verifySubjectAltName where the extracted DNS SAN string is cast to a C-style string using .cstr before bei...

nodejs: Node.js: Certification validation bypass in TLS host verification

A flaw was found in Node.js. An attacker can exploit a vulnerability in the Transport Layer Security TLS host verification process to bypass certification validation. This bypass could allow an attacker to intercept or alter communications, potentially leading to information disclosure or integri...

USN-8487-1 curl vulnerabilities

Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connection upgrades even when the TLS configuration did not match. A remote attacker could possibly use this issue to cause curl to use an unintended TLS configuration. CVE-2026-8286 Muhamad Arga...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...