libtasn1: Inefficient DER Decoding in libtasn1 Leading to Potential Remote DoS

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate,...

gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification

A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...

gnutls: gnutls: Certificate validation bypass due to improper handling of URI and SRV SANs

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier URI or Service SRV Subject Alternative Names SANs. This could cause the certificate validation process to incorrectly fall back to...

gnutls: gnutls: Security bypass due to incorrect name constraint handling

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

gnutls: gnutls: Security bypass due to incorrect name constraint handling

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages 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...

libtasn1: Inefficient DER Decoding in libtasn1 Leading to Potential Remote DoS

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate,...

gnutls: gnutls: Certificate validation bypass due to improper handling of URI and SRV SANs

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier URI or Service SRV Subject Alternative Names SANs. This could cause the certificate validation process to incorrectly fall back to...

gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name SAN could cause the validation process to incorrectly fall back to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to...

AlmaLinux 9 : runc (ALSA-2026:29702)

The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:29702 advisory. net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient...

RHEL 8 : gnutls and libtasn1 (RHSA-2026:30850)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:30850 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such a...

RHEL 8 : gnutls and libtasn1 (RHSA-2026:30849)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:30849 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such a...

Moderate: mod_md security update

This module manages common properties of domains for one or more virtual hosts. Specifically it can use the ACME protocol to automate certificate provisioning. Certificates will be configured for managed domains and their virtual hosts automatically, including at renewal. Security Fixes: httpd:...

icinga2 -- Improper access control for JSON-RPC update certificate messages

The Icinga team reports: The code handling certificate update JSON-RPC messages was flawed and did not properly validate the sender of the message, allowing an unauthenticated attacker that can connect to Icinga 2 to update both the own certificate as well as the trusted CA certificate. Updating...

tomcat security update

1:9.0.117-1 - Resolves: RHEL-150714 Certificate revocation bypass due to improper OCSP response validation - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 - Resolves: Tomcat: Cloud membership for clustering component exposed the Kubernet...

RHEL 9 : mod_md (RHSA-2026:30844)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:30844 advisory. This module manages common properties of domains for one or more virtual hosts. Specifically it can use the ACME protocol to automate certificate...

AlmaLinux 9 : containernetworking-plugins (ALSA-2026:29703)

The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:29703 advisory. net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient...

kernel security update

5.14.0-687.17.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

ALSA-2026:30845 Moderate: mod_md security update

This module manages common properties of domains for one or more virtual hosts. Specifically it can use the ACME protocol to automate certificate provisioning. Certificates will be configured for managed domains and their virtual hosts automatically, including at renewal. Security Fixes: httpd:...