RLSA-2026:50144 Moderate: libgcrypt security update

The libgcrypt library provides general-purpose implementations of various cryptographic algorithms. Security Fixes: Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext CVE-2026-41989 For more details about the security issues, including the impact, a CVSS score...

Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext

A flaw was found in Libgcrypt. A remote attacker could exploit this vulnerability by sending crafted Elliptic Curve Diffie-Hellman ECDH ciphertext to the gcrypkdecrypt function. This can lead to a heap-based buffer overflow, potentially causing a denial of service DoS condition...

Security update for libgcrypt

This update for libgcrypt fixes the following issue CVE-2026-41989: heap-based buffer overflow when processing crafted ECDH ciphertext can lead to a denial of service bsc1262684. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate o...

CVE-2026-45614 OP-TEE vulnerable to ECDH private key recovery

OP-TEE is a Trusted Execution Environment TEE designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Prior to version 4.11.0, on many of the ECDH shared secret paths, the public key isn't verified to be a point on the correct curve. By...

cryptography: cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

A validation flaw has been discovered in the python cryptography package. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification ECDSA and...

cryptography: cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

A validation flaw has been discovered in the python cryptography package. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification ECDSA and...

EUVD-2026-25192

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcrypkdecrypt...

UBUNTU-CVE-2026-35332

NULL-Pointer Dereference When Handling ECDH Public Value in TLS...

EUVD-2026-13209

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required keyshare extension,...

CVE-2026-3230

wolfSSL’s TLS 1.3 client logic is affected by an improper key_share handling during HelloRetryRequest, allowing a crafted HelloRetryRequest followed by a ServerHello without the key_share extension to derive predictable traffic secrets from the (EC)DHE shared secret. Affected component: TLS hands...

PT-2026-26366

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required key share extension,...

CVE-2026-1229 Incorrect calculation in CIRCL secp384r1 CombinedMult

The CombinedMult function in the CIRCL ecc/p384 package secp384r1 curve produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3...

SUSE CVE-2024-23342

The ecdsa PyPI package is a pure Python implementation of ECC Elliptic Curve Cryptography with support for ECDSA Elliptic Curve Digital Signature Algorithm, EdDSA Edwards-curve Digital Signature Algorithm and ECDH Elliptic Curve Diffie-Hellman. Versions 0.18.0 and prior are vulnerable to the...

SUSE CVE-2014-3510

The ssl3sendclientkeyexchange function in s3clnt.c in OpenSSL 0.9.8 before 0.9.8zb, 1.0.0 before 1.0.0n, and 1.0.1 before 1.0.1i allows remote DTLS servers to cause a denial of service NULL pointer dereference and client application crash via a crafted handshake message in conjunction with a 1...

Go 1.20 Cryptography

The first second release candidate of Go 1.20 is out!1 This is the first release I participated in as an independent maintainer, after leaving Google to become a professional Open Source maintainer. By the way, thats going great, and Im going to write more about it here soon! Im pretty happy with...

GHSA-RVJ9-8CVX-3VQ9 Invalid Curve Attack in node-jose

Affected versions of node-jose are vulnerable to an invalid curve attack. This allows an attacker to recover the private secret key when JWE with Key Agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES is used. Proof of Concept Recommendation Update to version 0.9.3 or later...

Invalid Curve Attack in node-jose

Affected versions of node-jose are vulnerable to an invalid curve attack. This allows an attacker to recover the private secret key when JWE with Key Agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES is used. Proof of Concept Recommendation Update to version 0.9.3 or later...

Invalid Curve Attack

github.com/square/go-jose is vulnerable to invalid curve attacks. These attacks are possible when using key agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES, allowing attackers to recover the private secret key...

Invalid Curve Attack

github.com/dvsekhvalnov/jose2go is vulnerable to invalid curve attacks. These attacks are possible when using key agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES, allowing attackers to recover the private secret key...

Invalid Curve Attack

Overview Affected versions of node-jose are vulnerable to an invalid curve attack. This allows an attacker to recover the private secret key when JWE with Key Agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES is used. Proof of Concept Recommendation Update to version 0.9.3 or...