Mbed TLS -- Local side channel attack on RSA and static Diffie-Hellman

Manuel Pégourié-Gonnard reports: An attacker with access to precise enough timing and memory access information typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world can recover the private keys used in RSA or static finite-field Diffie-Hellm...

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...

Security Vulnerabilities fixed in Firefox 80 — Mozilla

If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute updater.exe from the install location with administrative privileges. Although the Mozilla Maintenance Service does ensure that updater.exe is signed by Mozilla, the version could have been rolled...

CVE-2020-1459

An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. Th...

CVE-2020-1459

An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. Th...

Information disclosure

An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. Th...

CVE-2020-1459

CVE-2020-1459 is a Windows ARM information-disclosure vulnerability tied to speculative-execution side-channel behavior (straight-line speculation). The issue requires local privileges to run a crafted app to exfiltrate data. The provided documents state that Microsoft’s security update bypasses ...

Google Chrome Security Update (stable-channel-update-for-desktop-2020-07) - Linux

Google Chrome is prone to multiple vulnerabilities. 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...

Windows ARM Information Disclosure Vulnerability

An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. Th...

chromium-browser: Side-channel information leakage in autofill

Side-channel information leakage in autofill in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page...

Critical: Red Hat Security Advisory: chromium-browser security update

An update for chromium-browser is now available for Red Hat Enterprise Linux 6 Supplementary. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for eac...

chromium-browser: Side-channel information leakage in scroll to text

Side-channel information leakage in scroll to text in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to leak cross-origin data via a crafted HTML page...

RHEL 6 : chromium-browser (RHSA-2020:3377)

The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:3377 advisory. Chromium is an open-source web browser, powered by WebKit Blink. This update upgrades Chromium to version 84.0.4147.105. Security Fixes:...

Intel, ARM, IBM, AMD Processors Vulnerable to New Side-Channel Attacks

It turns out that the root cause behind several previously disclosed speculative execution attacks against modern processors, such as Meltdown and Foreshadow, was misattributed to 'prefetching effect,' resulting in hardware vendors releasing incomplete mitigations and countermeasures. Sharing its...

Intel, ARM, IBM, AMD Processors Vulnerable to New Side-Channel Attacks

It turns out that the root cause behind several previously disclosed speculative execution attacks against modern processors, such as Meltdown and Foreshadow, was misattributed to 'prefetching effect,' resulting in hardware vendors releasing incomplete mitigations and countermeasures. Sharing its...

Oracle Linux 8 : nss / and / nspr (ELSA-2020-3280)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-3280 advisory. nspr 4.25.0-2 - Rebuild 4.25.0-1 - Update to NSPR 4.25 nss 3.53.1-11 - Fix issue with upgradedb where upgradedb expects standard to generate dbm...

Side Channel Attack

nss is vulnerable to side channel attack. It is possible because of a flaw in ECDSA signature generation...

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

nss is vulnerable to information disclosure. An attacker is able to extract the position of zero and non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature generation when using the EM side-channel. With the partial information of the ECDSA nonce an...