Mbed TLS -- Local side channel attack on classical CBC decryption in (D)TLS

Manuel Pégourié-Gonnard reports: When decrypting/authenticating DTLS record in a connection using a CBC ciphersuite without the Encrypt-then-Mac extension RFC 7366, Mbed TLS used dummy rounds of the compression function associated with the hash used for HMAC in order to hide the length of the...

Information Disclosure

Arm Mbed TLS is vulnerable to Information Disclosure. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by 1 reconstructing the projective coordinate of the result of scalar multiplication by exploiting side channels in the conversion to...

Sensitive Information Disclosure

Arm Mbed TLS is vulnerable to sensitive information leakage. When deterministic ECDSA is enabled, it uses an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times...

Information Disclosure

mbedtls is vulnerable to information disclosure. The vulnerability exists as the ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key v...

[ASA-202007-5] mbedtls: private key recovery

Arch Linux Security Advisory ASA-202007-5 ========================================= Severity: Medium Date : 2020-07-31 CVE-ID : CVE-2020-10932 Package : mbedtls Type : private key recovery Remote : No Link : https://security.archlinux.org/AVG-1141 Summary ======= The package mbedtls before versio...

Fedora: Security Advisory for mbedtls (FEDORA-2020-fa74e15364)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH 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-or-later This program is free software; you can...

[SECURITY] Fedora 31 Update: mbedtls-2.16.7-1.fc31

Mbed TLS is a light-weight open source cryptographic and SSL/TLS library written in C. Mbed TLS makes it easy for developers to include cryptographic and SSL/TLS capabilities in their embedded applications with as little hassle as possible. FOSS License Exception:...

[SECURITY] Fedora 32 Update: mbedtls-2.16.7-1.fc32

Mbed TLS is a light-weight open source cryptographic and SSL/TLS library written in C. Mbed TLS makes it easy for developers to include cryptographic and SSL/TLS capabilities in their embedded applications with as little hassle as possible. FOSS License Exception:...

Fedora 31 : mbedtls (2020-5b60029fe2)

Update to 2.16.7 Security advisory: https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security -advisory-2020-07 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically...

PT-2020-6619 · Mbed Tls +1 · Mbed Tls +1

Name of the Vulnerable Software and Affected Versions: Mbed TLS versions prior to 2.24.0 Description: An issue in the verification of X.509 certificates allows an attacker to impersonate a domain by getting a certificate for the corresponding IPv4 or IPv6 address, provided they control that IP...

FreeBSD : Mbed TLS -- Side-channel attack on ECC key import and validation (c685edd9-c045-11ea-8898-001cc0382b2f)

Manuel Pegourie-Gonnard reports : The scalar multiplication function in Mbed TLS accepts a random number generator RNG as an optional argument and, if provided, uses it to protect against some attacks. It is the caller's responsibility to provide a RNG if protection against side-channel attacks i...

PT-2021-6717 · Arm +2 · Mbed Tls +2

Name of the Vulnerable Software and Affected Versions: Arm Mbed TLS versions prior to 2.23.0 Description: A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doesn't properly consider the case of a hardware accelerator. This issue is related to the implementation of...

PT-2021-6718

Name of the Vulnerable Software and Affected Versions Arm Mbed TLS versions prior to 2.23.0 Description The issue is related to a side channel in modular exponentiation, which could disclose an RSA private key used in a secure enclave. This is due to a dependency of the instruction timing on the...

Mbed TLS -- Side-channel attack on ECC key import and validation

Manuel Pégourié-Gonnard reports: The scalar multiplication function in Mbed TLS accepts a random number generator RNG as an optional argument and, if provided, uses it to protect against some attacks. It is the caller's responsibility to provide a RNG if protection against side-channel attacks is...

PT-2020-6633 · Arm +2 · Mbed Tls +2

Name of the Vulnerable Software and Affected Versions: Arm Mbed TLS versions prior to 2.23.0 Description: A side channel issue allows the recovery of an ECC private key. This is related to functions such as mbedtls ecp check pub priv, mbedtls pk parse key, mbedtls pk parse keyfile, mbedtls ecp mu...

ARM Mbed OS Denial of Service Vulnerability

ARM Mbed OS is a suite of open source embedded operating systems dedicated to the Internet of Things IoT from ARM in the U.K. The CoAP library is one of the Constrained Application Protocol CoAP libraries. A security vulnerability exists in the CoAP library parser in ARM Mbed OS version 5.15.3. A...

ARM Mbed OS CoAP library buffer overflow vulnerability (CNVD-2021-20266)

ARM Mbed OS is a suite of open source embedded operating systems dedicated to the Internet of Things IoT from ARM in the U.K. The CoAP library is one of the Constrained Application Protocol CoAP libraries. A buffer overflow vulnerability exists in the CoAP library in ARM Mbed OS version 5.15.3. A...

ARM Mbed OS CoAP library buffer overflow vulnerability (CNVD-2021-20267)

ARM Mbed OS is a suite of open source embedded operating systems dedicated to the Internet of Things IoT from ARM in the U.K. The CoAP library is one of the Constrained Application Protocol CoAP libraries. A buffer overflow vulnerability exists in the CoAP library in ARM Mbed OS version 5.15.3. A...

ARM Mbed OS CoAP library buffer overflow vulnerability (CNVD-2021-20269)

ARM Mbed OS is a suite of open source embedded operating systems dedicated to the Internet of Things IoT from ARM in the U.K. The CoAP library is one of the Constrained Application Protocol CoAP libraries. A buffer overflow vulnerability exists in the CoAP library in ARM Mbed OS version 5.15.3. A...

ARM Mbed OS CoAP library input validation error vulnerability (CNVD-2021-20270)

ARM Mbed OS is a suite of open source embedded operating systems dedicated to the Internet of Things IoT from ARM in the U.K. The CoAP library is one of the Constrained Application Protocol CoAP libraries. An input validation error vulnerability exists in the CoAP library in ARM Mbed OS version...