GnuTLS -- Stack write buffer overflow

GnuTLS reports: When a PKCS11 token is initialized with gnutlspkcs11tokeninit function and it is passed a token label longer than 32 characters, it may write past the boundary of stack allocated memory...

Stack-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the gnutlspkcs11tokeninit function. An attacker can cause a crash or potentially execute arbitrary code by supplying a PKCS11 token with a label longer than 32 characters, leading to writing past the end ...

CLSA-2025-1763059190 Update of gnutls

Bump the version...

Siemens SIMATIC S7-1500 Use After Free (CVE-2021-20231)

A flaw was found in gnutls. A use after free issue in client sending keyshare extension may lead to memory corruption and other consequences. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc...

Siemens SIMATIC S7-1500 Uncaught Exception (CVE-2024-28835)

A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted .pem bundle using the certtool --verify-chain command. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Siemens SIMATIC S7-1500 Observable Discrepancy (CVE-2023-0361)

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to...

Siemens SIMATIC S7-1500 Use of Insufficiently Random Values (CVE-2020-11501)

GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 2018-07-16 because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks...

Siemens SIMATIC S7-1500 Use After Free (CVE-2021-20232)

A flaw was found in gnutls. A use after free issue in clientsendparams in lib/ext/presharedkey.c may lead to memory corruption and other potential consequences. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 809...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2025-32989)

A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency CT Signed Certificate Timestamp SCT extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension OID...

Siemens SIMATIC S7-1500 and Ruggedcom ROX Devices Inefficient Algorithmic Complexity (CVE-2024-12243)

A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially...

Siemens SIMATIC S7-1500 Double Free (CVE-2022-2509)

A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutlspkcs7verify function. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Siemens SIMATIC S7-1500 Exposure of Sensitive Information to an Unauthorized Actor (CVE-2024-28834)

A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLSPRIVKEYFLAGREPRODUCIBLE flag, it can result in a noticeable step in nonce...

Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image

Summary Multiple vulnerabilities were remediated in IBM Observability with Instana within Instana Agent container image build 1.0.308 Vulnerability Details CVEID:CVE-2025-32990 DESCRIPTION: A heap-buffer-overflow off-by-one flaw was found in the GnuTLS software in the template parsing logic withi...

EulerOS 2.0 SP12 : gnutls (EulerOS-SA-2025-2326)

According to the versions of the gnutls packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject...

Huawei EulerOS: Security Advisory for gnutls (EulerOS-SA-2025-2413)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for gnutls (EulerOS-SA-2025-2385)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP10 : gnutls (EulerOS-SA-2025-2385)

According to the versions of the gnutls packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject...

Huawei EulerOS: Security Advisory for gnutls (EulerOS-SA-2025-2326)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP10 : gnutls (EulerOS-SA-2025-2413)

According to the versions of the gnutls packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject...

EulerOS 2.0 SP12 : gnutls (EulerOS-SA-2025-2357)

According to the versions of the gnutls packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject...