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: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly

A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in mergehandshakepacket where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the messagelength field remains...

gnutls: GnuTLS: Policy bypass due to case-sensitive nameConstraints comparison

A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of nameConstraints labels, specifically for dNSName DNS or rfc822Name email constraints within excludedSubtrees or permittedSubtrees. A remote attacker can exploit this by crafting a leaf...

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...

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...

gnutls: gnutls: Information disclosure via heap overread in RSA key exchange

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure...

ROS-20260625-73-0009

The vulnerability in gnutls relates to the swapping of a pointer with an expired validity period. Exploiting this vulnerability can allow a perpetrator to cause a service failure...

ROS-20260625-73-0002

The vulnerability in gnutls is related to errors in processing parameter values related to input data length. Exploiting this vulnerability can allow a remote attacker to cause service failures...

ROS-20260625-73-0015

The vulnerability of the comparestrings function in the GnuTLS library is related to shortcomings in the mechanism for handling register-dependent data. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information...

ROS-20260625-73-0013

The vulnerability of the Transport Layer Security library GnuTLS is related to its algorithmic complexity. Exploiting this vulnerability could allow a malicious actor to cause service failures...

ROS-20260625-73-0010

The vulnerability in gnutls is related to errors in the certificate validation process. Exploitation of this vulnerability can be carried out remotely...

ROS-20260625-73-0011

The vulnerability in gnutls is related to a numerical overflow issue. Exploiting this vulnerability could allow an attacker to execute arbitrary code...

ROS-20260625-73-0005

The vulnerability in gnutls is related to incorrect input of configuration data. The vulnerability can be exploited remotely...

ROS-20260625-73-0007

The vulnerability in gnutls is related to a single shift error. Exploiting this vulnerability can allow an attacker to cause a service failure...

ROS-20260625-73-0014

The vulnerability in gnutls is related to errors in the certificate validation process. Exploitation of this vulnerability can be carried out remotely...

ROS-20260625-73-0006

The vulnerability in gnutls is related to incorrect input of configuration data. The vulnerability can be exploited remotely...

ROS-20260625-73-0004

The vulnerability in gnutls is related to the unlimited distribution of resources. Exploiting this vulnerability could allow a remote attacker to cause service failures...

RHSA-2026:26409 Red Hat Security Advisory: gnutls security update

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Security Bulletin: Multiple security vulnerabilities in RedHat UBI affect IBM Robotic Process Automation for Cloud Pak

Summary Multiple vulnerabilities in RedHat UBI affect IBM Robotic Process Automation for Cloud Pak. RedHat UBI is used as base imaged for IBM Robotic Process Automation for Cloud Pak images. This bulletin identifies the fixes required to address the vulnerabilites. Vulnerability Details...

gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly

A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in mergehandshakepacket where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the messagelength field remains...