CVE-2021-20305

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allow...

Design/Logic Flaw

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allow...

UBUNTU-CVE-2021-20305

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allow...

CVE-2021-20305

CVE-2021-20305 affects Nettle prior to 3.7.2 where signature verification (GOST DSA, EDDSA, ECDSA) calls ECC multiply with out-of-range scalars, potentially producing incorrect results and allowing an attacker to force an invalid signature (leading to assertion failure or validation issues). Docu...

CVE-2021-20305

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allow...

CVE-2021-20305

A flaw was found in Nettle, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an...

FreeBSD : nettle 3.7.2 -- fix serious ECDSA signature verify bug (80f9dbd3-8eec-11eb-b9e8-3525f51429a0)

Niels Moller reports : I've prepared a new bug-fix release of Nettle, a low-level cryptographics library, to fix a serious bug in the function to verify ECDSA signatures. Implications include an assertion failure, which could be used for denial-of-service, when verifying signatures on the secp224...

nettle 3.7.2 -- fix serious ECDSA signature verify bug

Niels Möller reports: I've prepared a new bug-fix release of Nettle, a low-level cryptographics library, to fix a serious bug in the function to verify ECDSA signatures. Implications include an assertion failure, which could be used for denial-of-service, when verifying signatures on the secp224r...

PT-2021-3125

Name of the Vulnerable Software and Affected Versions Nettle versions prior to 3.7.2 Description A flaw was found in the Nettle signature verification functions, including GOST DSA, EDDSA, and ECDSA, where the Elliptic Curve Cryptography point multiply function is called with out-of-range scalers...

NewStart CGSL MAIN 6.02 : libgcrypt Vulnerability (NS-SA-2021-0071)

The remote NewStart CGSL host, running version MAIN 6.02, has libgcrypt packages installed that are affected by a vulnerability: - It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versio...

openSUSE Security Update : mbedtls (openSUSE-2021-384)

This update for mbedtls fixes the following issues : - mbedtls was updated to version 2.16.9 - CVE-2020-10932: Fixed side channel in ECC code that allowed an adversary with access to precise enough timing and memory access information typically an untrusted operating system attacking a secure...

OPENSUSE-SU-2021:0384-1 Security update for mbedtls

This update for mbedtls fixes the following issues: - mbedtls was updated to version 2.16.9 - CVE-2020-10932: Fixed side channel in ECC code that allowed an adversary with access to precise enough timing and memory access information typically an untrusted operating system attacking a secure...

Security update for mbedtls (moderate)

openSUSE Security Update: Security update for mbedtls Announcement ID: openSUSE-SU-2021:0384-1 Rating: moderate References: 1181468 Cross-References: CVE-2020-10932 CVSS scores: CVE-2020-10932 NVD : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Affected Products: openSUSE Leap 15.2 An update...

EulerOS Virtualization for ARM 64 3.0.6.0 : nss-softokn (EulerOS-SA-2021-1536)

According to the versions of the nss-softokn packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it could...

CentOS 8 : nss (CESA-2021:0538)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:0538 advisory. - nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function CVE-2020-12400 - nss: CHACHA20-POLY1305 decryption with...

nss: ECDSA timing attack mitigation bypass

A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDS...

nss: Side channel attack on ECDSA signature generation

A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation, leaking partial information about the ECDSA nonce. Given a small number of ECDS...

Moderate: Red Hat Security Advisory: nss security and bug fix update

An update for nss is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CV...

nss security and bug fix update

An update is available for nss. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Network Security Services NSS is a set of libraries designed to support the...

RLSA-2021:0538 Moderate: nss security and bug fix update

Network Security Services NSS is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Security Fixes: nss: Side channel attack on ECDSA signature generation CVE-2020-6829 nss: P-384 and P-521 implementation uses a side-channel...