CLEANSTART-2026-XR25689 Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel

CVE-2026-77696 affects multiple packages. Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. See references for individual vulnerability details...

CLEANSTART-2026-YQ62547 Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms

CVE-2026-54875 affects multiple packages. Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. See references for individual vulnerability details...

CLEANSTART-2026-KH74871 Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secre...

CVE-2026-54872 affects multiple packages. Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. See references for individual...

Important: openssl

Issue Overview: Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possib...

Important: openssl-snapsafe

Issue Overview: Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possib...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi – Fixed unexpected pointer access in mpiecinit When the mpiecctx structure is initialized, some fields are not cleared, resulting in a crash when referencing those fields after the structure is released. Initially...

SUSE CVE-2026-54872

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

SUSE CVE-2026-54875

Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption ...

SUSE CVE-2026-77696

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

Security update for openssl-3

This update for openssl-3 fixes the following issues: CVE-2026-35189: Excessive Memory Allocation in Relative CRLDP Processing bsc1280589. CVE-2026-54872: Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves bsc1280591. CVE-2026-75805: NULL Pointer Dereference in CMP Client...

CentOS Linux 7 [TuxCare] Security Update: openssl11 / openssl11-devel / openssl11-libs / openssl11-static Multiple Vulnerabilities (CENTOS7:CLSA-2026:1780683040)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2026:1780683040 advisory. - In order to decrypt SM2 encrypted data an application is expected to call the API function EVPPKEYdecrypt. Typically an application wi...

openssl: openssl: information disclosure via non-constant-time SM2 scalar multiplication on ARM64 and RISC-V

A flaw was found in OpenSSL. The optimized scalar point multiplication used for SM2 cryptographic operations on ARM64 and RISC-V architectures does not execute in constant time. An attacker capable of measuring execution times or observing processor cache-access patterns can exploit this side...

openssl: OpenSSL: Private key recovery via timing side-channel in generic elliptic curve operations

A flaw was found in OpenSSL. A timing side-channel vulnerability in generic elliptic curve scalar multiplication allows an attacker to recover private cryptographic keys. When performing signature operations, such as the Elliptic Curve Digital Signature Algorithm ECDSA or SM2, using curves withou...

openssl: OpenSSL: Private key recovery via SM2 timing side-channel

A flaw was found in OpenSSL. During SM2 signature generation, variable-time arithmetic operations are performed on secret values, creating an observable timing side-channel. An attacker capable of measuring signature generation times can collect timing data across multiple signing operations, whi...

openssl: openssl: information disclosure via non-constant-time SM2 scalar multiplication on ARM64 and RISC-V

A flaw was found in OpenSSL. The optimized scalar point multiplication used for SM2 cryptographic operations on ARM64 and RISC-V architectures does not execute in constant time. An attacker capable of measuring execution times or observing processor cache-access patterns can exploit this side...

openssl: OpenSSL: Private key recovery via timing side-channel in generic elliptic curve operations

A flaw was found in OpenSSL. A timing side-channel vulnerability in generic elliptic curve scalar multiplication allows an attacker to recover private cryptographic keys. When performing signature operations, such as the Elliptic Curve Digital Signature Algorithm ECDSA or SM2, using curves withou...

openssl: OpenSSL: Private key recovery via SM2 timing side-channel

A flaw was found in OpenSSL. During SM2 signature generation, variable-time arithmetic operations are performed on secret values, creating an observable timing side-channel. An attacker capable of measuring signature generation times can collect timing data across multiple signing operations, whi...

OESA-2026-4216 botan2 security update

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS \10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API...

OESA-2026-4214 botan2 security update

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS \10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API...

OESA-2026-4215 botan2 security update

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS \10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API...