A week in security (May 3 – 9)

Last week on Malwarebytes Labs, we discussed how Spectre attacks have come back from the dead; why Facebook banned Instragram ads by Signal; we highlighted the differences between the most popular VPN protocols; pointed out that Google is about to start automatically enrolling users in two-step...

[SECURITY] Fedora 33 Update: bind-9.11.31-1.fc33

BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Name System protocols. BIND includes a DNS server named, which resolves host names to IP addresses; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server ...

What does Zero Trust mean for API security?

The old mentality of building a moat around important assets and trusting anyone or anything that is already inside the castle perimeter has failed us. Attackers have developed many techniques to jump the moat and scale the castle walls to get at what they want. Thus, the new rallying cry is to...

VPN protocols explained and compared

A Virtual Private Network VPN creates a safe "tunnel" between you and a computer you trust normally your VPN provider to protect your traffic from spying and manipulation. Any VPN worth its money encrypts the information that passes through it, so in this article we will ignore those that dont us...

[SECURITY] Fedora 34 Update: bind-9.16.15-1.fc34

BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Name System protocols. BIND includes a DNS server named, which resolves host names to IP addresses; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server ...

SaaS Attacks: Lessons from Real-Life Misconfiguration Exploits

It’s unfortunate but true: SaaS attacks continue to increase. You can’t get around it, COVID-19 accelerated the already exploding SaaS market and caused industries not planning on making a switch to embrace SaaS. With SaaS apps becoming the default system of record for organizations, it has left...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 5.7.33 and prior and 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

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Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

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Datagram Transport Layer Security (DTLS) Protocol Detection

Detection of services supporting the Datagram Transport Layer Security DTLS protocol. 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...

Mozilla Thunderbird 代码问题漏洞

Mozilla Thunderbird is the United States Mozilla Foundation's set of independent from the Mozilla Application Suite e-mail client software. The program supports IMAP, POP mail protocols and HTML mail format. A security vulnerability exists in Mozilla Thunderbird, which can be exploited by attacke...

CVE-2021-2300

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: DML. Supported versions that are affected are 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks o...

CVE-2021-2248

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization component: Server. The supported version that is affected is 5.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Secure Global...

CVE-2021-2248

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization component: Server. The supported version that is affected is 5.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Secure Global...

CVE-2021-2221

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization component: Client. The supported version that is affected is 5.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Secure Global...

DEBIAN-CVE-2021-2194

Vulnerability in the MySQL Server product of Oracle MySQL component: InnoDB. Supported versions that are affected are 5.7.33 and prior and 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server...

CVE-2021-2208

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Partition. Supported versions that are affected are 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful...

CVE-2021-2177

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization component: Gateway. The supported version that is affected is 5.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Secure Global...

CVE-2021-2177

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization component: Gateway. The supported version that is affected is 5.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Secure Global...

CVE-2021-2174

Vulnerability in the MySQL Server product of Oracle MySQL component: InnoDB. Supported versions that are affected are 5.7.33 and prior and 8.0.23 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server...