EUVD-2026-91317

In Bouncy Castle for Java before 1.86, NTRU reduced secret values with the % operator in three helpers whose reference implementations are deliberately division-free, so each reduction was carried out by an integer division whose latency depends on the secret operand. Polynomial.modQ divided by a...

CVE-2026-18036

Bouncy Castle for Java versions prior to 1.86 are vulnerable to a timing side-channel attack in the NTRU implementation. The root cause is the use of the % operator in three helpers, leading to integer division where latency depends on the secret operand. Specifically, Polynomial.modQ divides by ...

CVE-2023-1206-CVE-2025-40040-CVE-2024-49882

Combined Covert Channel: CVE-2023-1206 + CVE-2024-49882 Overview This project demonstrates a covert communication channel using two Linux kernel vulnerabilities: Component| CVE| Purpose ---|---|--- Sync Channel| CVE-2023-1206| Clock synchronization via IPv6 hash collision timing Data Channel|...

PT-2026-104155

In Bouncy Castle for Java before 1.86, NTRU reduced secret values with the % operator in three helpers whose reference implementations are deliberately division-free, so each reduction was carried out by an integer division whose latency depends on the secret operand. Polynomial.modQ divided by a...

CentOS Linux 7 [TuxCare] Security Update: nss-softokn / nss-softokn-devel / nss-softokn-freebl / etc (CENTOS7:CLSA-2025:1739975489)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2025:1739975489 advisory. - NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover...

CentOS Linux 8.4 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl / etc (CENTOS8.4:CLSA-2025:1751142817)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2025:1751142817 advisory. - Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation...

Rocky Linux 8 [CIQ] Security Update: gnutls / gnutls-c++ / gnutls-c++-debuginfo / gnutls-dane / etc (crlsa-2023_1569)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20231569 advisory. gnutls: timing side-channel in the TLS RSA key exchange code CVE-2023-0361 Tenable has extracted the preceding description block directly from the CIQ security...

CentOS Linux 7 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl / etc (CENTOS7:CLSA-2026:1785400004)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1785400004 advisory. - Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact...

Rocky Linux 9 [CIQ] Security Update: gnutls / gnutls-c++ / gnutls-c++-debuginfo / gnutls-dane / etc (crlsa-2023_1141)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20231141 advisory. gnutls: timing side-channel in the TLS RSA key exchange code CVE-2023-0361 Tenable has extracted the preceding description block directly from the CIQ security...

AlmaLinux 9.6 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1777948139)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1777948139 advisory. - Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature...

CentOS Linux 8.5 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl / etc (CENTOS8.5:CLSA-2025:1751889283)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2025:1751889283 advisory. - Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation...

AlmaLinux 9.2 [TuxCare] Security Update: nspr / nspr-devel / nss / nss-devel / nss-pkcs11-devel / etc (ALMALINUX9.2:CLSA-2025:1756961235)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1756961235 advisory. - NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to...

Rocky Linux 9.6 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1777948139)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1777948139 advisory. - Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature...

AlmaLinux 9.2 [TuxCare] Security Update: thunderbird Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1779786876)

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1779786876 advisory. - NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacke...

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: 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 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...

AlmaLinux 9.2 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl (ALMALINUX9.2:CLSA-2025:1759865335)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1759865335 advisory. - Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenSSL vulnerabilities (USN-8847-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8847-1 advisory. It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker coul...