New SWAPGS Side-Channel Attack Bypasses Spectre and Meltdown Defenses

Millions of newer Intel microprocessors manufactured after 2012 are vulnerable to a new type of side-channel attack dubbed SWAPGS. SWAPGS is similar to existing side-channel attacks such as Spectre and Meltdown and similarly could allow a hacker to gain access to sensitive data such as passwords...

kernel: hw: Spectre SWAPGS gadget vulnerability

A Spectre gadget was found in the Linux kernel's implementation of system interrupts. An attacker with local access could use this information to reveal private data through a Spectre like side channel...

SWAPGS Attack — New Speculative Execution Flaw Affects All Modern Intel CPUs

A new variant of the Spectre Variant 1 side-channel vulnerability has been discovered that affects all modern Intel CPUs, and probably some AMD processors as well, which leverage speculative execution for high performance, Microsoft and Red Hat warned. Identified as CVE-2019-1125, the vulnerabili...

ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the gcryeccecdsasign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. T...

Moderate: Red Hat Security Advisory: nss, nss-softokn, nss-util, and nspr security, bug fix, and enhancement update

An update for nss, nss-softokn, nss-util, and nspr is now available for Red Hat Enterprise Linux 7. 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 f...

nss: Cache side-channel variant of the Bleichenbacher attack

A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack AKA Bleichenbacher attack and affects all NSS versions prior to NSS 3.41...

Kernel: page cache side channel attacks

A new software page cache side channel attack scenario was discovered in operating systems that implement the very common 'page cache' caching mechanism. A malicious user/process could use 'in memory' page-cache knowledge to infer access timings to shared memory and gain knowledge which can be us...

openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash)

A microprocessor side-channel vulnerability was found on SMT e.g, Hyper-Threading architectures. An attacker running a malicious process on the same core of the processor as the victim process can extract certain secret information...

Moderate: Red Hat Security Advisory: ovmf security and enhancement update

An update for ovmf is now available for Red Hat Enterprise Linux 7. 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 C...

Windows Kernel Information Disclosure Vulnerability

An information disclosure vulnerability exists when certain central processing units CPU speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an...

CVE-2019-13377

The implementations of SAE and EAP-pwd in hostapd and wpasupplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel...

Medium: kernel

Issue Overview: There is a newly discovered variant side-channel attack of Spectre V1 which leverages SWAPGS instructions to bypass KPTI/KVA mitigations. This could lead to a kernel information disclosure Affected Packages: kernel Issue Correction: Run yum update kernel or yum update --advisory...

Researchers Discover New Ways to Hack WPA3 Protected WiFi Passwords

The same team of cybersecurity researchers who discovered several severe vulnerabilities, collectively dubbed as Dragonblood, in the newly launched WPA3 WiFi security standard few months ago has now uncovered two more flaws that could allow attackers to hack WiFi passwords. WPA, or WiFi Protected...

Researchers Discover New Ways to Hack WPA3 Protected WiFi Passwords

The same team of cybersecurity researchers who discovered several severe vulnerabilities, collectively dubbed as Dragonblood, in the newly launched WPA3 WiFi security standard few months ago has now uncovered two more flaws that could allow attackers to hack WiFi passwords. WPA, or WiFi Protected...

Debian: Security Advisory (DLA-1867-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2019 Greenbone AG 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-only ifdescription...

Ubuntu: Security Advisory (USN-4080-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 Greenbone AG 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-only ifdescription...

USN-4080-1 openjdk-8 vulnerabilities

Keegan Ryan discovered that the ECC implementation in OpenJDK was not sufficiently resilient to side-channel attacks. An attacker could possibly use this to expose sensitive information. CVE-2019-2745 It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing...

USN-4080-1: OpenJDK 8 vulnerabilities

Keegan Ryan discovered that the ECC implementation in OpenJDK was not sufficiently resilient to side-channel attacks. An attacker could possibly use this to expose sensitive information. CVE-2019-2745 It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing...

Security Bulletin:IBM Security Identity Adapters has released a fix in response to the OpenSSL vulnerabilities

Summary IBM has released the following a fix for IBM Security Identity Adapters in response to OpenSSL vulnerabilities CVE-2018-0732, CVE-2018-0733, CVE-2018-0734, CVE-2018-0739 and CVE-2019-1559 Vulnerability Details CVEID: CVE-2018-0732 DESCRIPTION: OpenSSL is vulnerable to a denial of service,...

CVE-2019-14318

Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp...