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...

EulerOS Virtualization 3.0.6.0 : nss-softokn (EulerOS-SA-2020-1754)

According to the versions of the nss-softokn packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. Thi...

EulerOS Virtualization 3.0.6.0 : wpa_supplicant (EulerOS-SA-2020-1763)

According to the versions of the wpasupplicant package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The implementations of SAE in hostapd and wpasupplicant are vulnerable to side channel attacks as a result of observable...

EulerOS Virtualization 3.0.6.0 : nss (EulerOS-SA-2020-1718)

According to the version of the nss packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a...

GHSA-G753-JX37-7XWH ECDSA signature vulnerability of Minerva timing attack in jsrsasign

Impact ECDSA side-channel attack named Minerava have been found and it was found that it affects to jsrsasign. Execution time of thousands signature generation have been observed then EC private key which is scalar value may be recovered since point and scalar multiplication time depends on bits ...

ECDSA signature vulnerability of Minerva timing attack in jsrsasign

Impact ECDSA side-channel attack named Minerava have been found and it was found that it affects to jsrsasign. Execution time of thousands signature generation have been observed then EC private key which is scalar value may be recovered since point and scalar multiplication time depends on bits ...

Fedora 31 : xen (2020-e49a911382)

Special Register Buffer speculative side channel XSA-320 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional...

hw: L1D Cache Eviction Sampling

A microarchitectural timing flaw was found on some Intel processors. A corner case exists where data in-flight during the eviction process can end up in the “fill buffers” and not properly cleared by the MDS mitigations. The fill buffer contents which were expected to be blank can be inferred usi...

Fedora 32 : xen (2020-2a4faa84d1)

Special Register Buffer speculative side channel XSA-320 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional...

What Is a Side Channel Attack?

Computers constantly give off more information than you might realize—which hackers can use to pry out their secrets...

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...

UBUNTU-CVE-2020-12402

During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secr...

CVE-2020-13844

A new speculative side-channel vulnerability was found that affects the ARM processor's code, 'Straight-line speculation.' This flaw allows a local attacker to infer cache contents through measuring timing access. The highest threat from this vulnerability is to confidentiality. Mitigation...

SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1597-1)

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called...

SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1596-1)

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:1630-1)

This update for xen fixes the following issues : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling SRBDS or 'CrossTalk'...

SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1587-1)

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which...

SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1603-1)

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which...

SUSE-SU-2020:1634-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling SRBDS or 'CrossTalk...

SUSE-SU-2020:1633-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling SRBDS or 'CrossTalk...