Spectre attacks come back from the dead

Spectre is the name for a whole class of vulnerabilities discovered in January 2018 that affected huge numbers of modern computer processors that rely on a performance feature called speculative execution. Since then, some of the world’s most talented computer scientists from industry and academi...

AMD RESPONSE TO “I see dead µops: leaking secrets via Intel/AMD micro-op caches” RESEARCH PAPER

Bulletin ID: AMD-SB-1006 Summary AMD has reviewed the research paper and believes existing mitigations were not being bypassed and no new mitigations are required. AMD recommends its existing side-channel mitigation guidance and standard secure coding practices be followed. CVE Details None...

New Attacks Slaughter All Spectre Defenses

All defenses against Spectre side-channel attacks can now be considered broken, leaving billions of computers and other devices just as vulnerable today as they were when the hardware flaw was first announced three years ago. A paper published on Friday by a team of computer scientists from the...

MGASA-2021-0204 Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.10.33 and fixes at least the following security issues: A race condition in Linux kernel SCTP sockets net/sctp/socket.c before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If...

Security Bulletin: OpenSSL vulnerability affects IBM Rational Team Concert

Summary OpenSSL vulnerability was disclosed by the OpenSSL Project. OpenSSL is used by Rational BuildForge Agent shipped with IBM Rational Team Concert. Rational BuildForge has addressed the applicable CVE Vulnerability Details CVEID: CVE-2018-0734 DESCRIPTION: OpenSSL could allow a remote attack...

CVE-2021-31404 Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18

Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.13 Vaadin 10.0.0 through 10.0.16, 1.1.0 prior to 2.0.0 Vaadin 11 prior to 14, 2.0.0 through 2.4.6 Vaadin 14.0.0 through 14.4.6, 3.0.0 prior to 5.0.0 Vaadin 15 prior to 18, and...

CVE-2021-31403 Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8

Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 Vaadin 7.0.0 through 7.7.23, and 8.0.0 through 8.12.2 Vaadin 8.0.0 through 8.12.2 allows attacker to guess a security token via timing attack...

Amazon Linux 2 : kernel (ALAS-2021-1627)

The version of kernel installed on the remote host is prior to 4.14.231-173.360. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1627 advisory. A memory leak in the adisupdatescanmode function in drivers/iio/imu/adisbuffer.c in the Linux kernel before 5.3.9...

Important: kernel

Issue Overview: A memory leak in the adisupdatescanmode function in drivers/iio/imu/adisbuffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service memory consumption, aka CID-ab612b1daf41. CVE-2019-19060 A bypass was found for the Spectre v1 hardening in the eBPF engi...

AZL-6545 CVE-2021-29155 affecting package kernel for versions less than 5.10.78.1-1

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

Design/Logic Flaw

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

CVE-2021-29155

A vulnerability was discovered in retrieveptrlimit in kernel/bpf/verifier.c in the Linux kernel mechanism to mitigate speculatively out-of-bounds loads Spectre mitigation. In this flaw a local, special user privileged CAPSYSADMIN BPF program running on affected systems may bypass the protection,...

CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

CVE-2021-29155

CVE-2021-29155 is a Linux kernel issue affecting the eBPF verifier path (kernel/bpf/verifier.c) that allows speculative-out-of-bounds memory accesses to leak kernel memory via side-channels. The description from connected documents ties the vulnerability to Spectre mitigations and notes that a lo...

GHSA-P7JQ-V8JP-J424 Timing side channel vulnerability in endpoint request handler in Vaadin 15-19

Non-constant-time comparison of CSRF tokens in endpoint request handler in com.vaadin:flow-server versions 3.0.0 through 5.0.3 Vaadin 15.0.0 through 18.0.6, and com.vaadin:fusion-endpoint version 6.0.0 Vaadin 19.0.0 allows attacker to guess a security token for Fusion endpoints via timing attack....

GHSA-C6C4-7X48-4CQP Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18

Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.13 Vaadin 10.0.0 through 10.0.16, 1.1.0 prior to 2.0.0 Vaadin 11 prior to 14, 2.0.0 through 2.4.6 Vaadin 14.0.0 through 14.4.6, 3.0.0 prior to 5.0.0 Vaadin 15 prior to 18, and...

SUSE: Security Advisory (SUSE-SU-2020:3424-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...