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: 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...

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-20260625-73-0009

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-20260625-73-0011

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...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in GnuTLS. This vulnerability allows for a denial of service attack through excessive CPU usage and memory consumption, caused by specially crafted malicious certificates that contain a large number of name constraints and Subject Alternative Names SANs...

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

Bulletin has no description...

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: Memory corruption due to off-by-one error in PKCS#12 bag handling

A flaw was found in gnutls. An off-by-one error exists in the PKCS12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of...

gnutls: gnutls: Authentication Bypass via NUL Character in Username

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

gnutls: gnutls: Denial of Service via DTLS packet reordering vulnerability

A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security DTLS packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This...

gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service...