The Product Security Blog has moved!

Red Hat Product Security has joined forces with other security teams inside Red Hat to publish our content in a common venue using the Security channel of the Red Hat Blog.This move provides a wider variety of important Security topics,[…]

SPECTRE Variant 1 scanning tool

As part of Red Hat's commitment to product security we have developed a tool internally that can be used to scan for variant 1 SPECTRE vulnerabilities. As part of our commitment to the wider user community, we are introducing this[…]

Join us in San Francisco at the 2018 Red Hat Summit

This year’s Red Hat Summit will be held on May 8-10 in beautiful San Francisco, USA.Product Security will be joining many Red Hat security experts in presenting and assisting subscribers and partners at the show.Here is a sneak peek at[…]

Let's talk about PCI-DSS

For those who aren’t familiar with Payment Card Industry Data Security Standard (PCI-DSS), it is the standard that is intended to protect our credit card data as it flows between systems and is stored in company databases.PCI-DSS requires that all[…]

Abuse of RESTEasy Default Providers in JBoss EAP

Red Hat JBoss Enterprise Application Platform (EAP) is a commonly used host for Restful webservices. A powerful but potentially dangerous feature of Restful webservices on JBoss EAP is the ability to accept any media type. If not configured to accept[…]

The RHSA notifications you want, right in your Inbox

Red Hat Product Security takes pride in the quality and timeliness of its Security Advisories and all the accompanying information we publish for every erratum and vulnerability that we track and fix in our products.There are many ways in which[…]

Join us at Red Hat Summit 2017

As you’ve probably heard, this year’s Red Hat Summit is in Boston May 2-4. Product Security is looking forward to taking over multiple sessions and activities over the course of those 3 days, and we wanted to give you a[…]

Red Hat Product Security Risk Report 2016

At Red Hat, our dedicated Product Security team analyzes threats and vulnerabilities against all our products and provides relevant advice and updates through the Red Hat Customer Portal. Customers can rely on this expertise to help them quickly address the[…]

Deprecation of Insecure Algorithms and Protocols in RHEL 6.9

Cryptographic protocols and algorithms have a limited lifetime—much like everything else in technology. Algorithms that provide cryptographic hashes and encryption as well as cryptographic protocols have a lifetime after which they are considered either too risky to use or plain[…]

From There to Here (But Not Back Again)

Red Hat Product Security recently celebrated our 15th anniversary this summer and while I cannot claim to have been with Red Hat for that long (although I’m coming up on 8 years myself), I’ve watched the changes from the “0day”[…]

Redefining how we share our security data.

Red Hat Product Security has long provided various bits of machine-consumable information to customers and users via our Security Data page.Today we are pleased to announce that we have made it even easier to access and parse this data through[…]

CVE-2016-3710: QEMU: out-of-bounds memory access issue

Quick Emulator (aka QEMU) is an open source systems emulator. It emulates various processors and their accompanying hardware peripherals like disc, serial ports, NIC et al. A serious vulnerability of out-of-bounds r/w access through the Video Graphics Array (VGA) emulator[…]

Go home SSLv2, you’re DROWNing

The SSLv2 protocol had its 21st birthday last month, but it’s no cause to celebrate with an alcohol beverage, since the protocol was already deprecated when it turned 18.Announced today is an attack called DROWN that takes advantage of systems[…]

Debian Bookworm: DSA-5954-1 critical: sudo local privilege escalation

Rich Mirch discovered that sudo, a program designed to provide limited super user privileges to specific users, does not correctly handle the host (-h or --host) option. Due to a bug the host option was not restricted to listing privileges[…]

Debian: DSA-5952-1 critical: chromium arbitrary code execution

Security issues were discovered in Chromium which could result in the execution of arbitrary code, denial of service, or information disclosure.

Debian 12: DSA-5950-1 important: firefox-esr arbitrary code risk

Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code.

Debian DSA-5947-1 important: xorg-server privilege escalation

Nils Emmerich discovered several vulnerabilities in the Xorg X server, which may result in privilege escalation if the X server is running privileged.

Debian 12: DSA-5945-1 important: konsole telnet code execution

Dennis Dast discovered that the Konsole terminal emulator insecurely handled the telnet URI scheme, which could result in the execution of arbitrary code in some configurations.

Debian: DSA-5943-1 libblockdev local privilege escalation

The Qualys Threat Research Unit (TRU) discovered a local privilege escalation vulnerability in libblockdev, a library for manipulating block devices. An "allow_active" user can exploit this flaw via the udisks daemon to obtain the full privileges of the root user.

Debian: DSA-5941-1 critical: gst-plugins-bad1.0 H.265 Denial of Service

Multiple vulnerabilities were discovered in the H.265 plugin for the GStreamer media framework, which may result in denial of service or potentially the execution of arbitrary code if a malformed media file is opened.

Debian: DSA-5939-1 gimp severe: denial of service, code execution

Several vulnerabilities were discovered in GIMP, the GNU Image Manipulation Program, which could result in denial of service or potentially the execution of arbitrary code if malformed XCF, TGA, DDS, FLI or ICO files are opened.

Debian WebKitGTK DSA-5937-1: Addresses Critical Memory Corruption

The following vulnerabilities have been discovered in the WebKitGTK web engine: CVE-2025-24223

Debian: DSA-5935-1 severe: chromium code execution and info leak

Security issues were discovered in Chromium which could result in the execution of arbitrary code, denial of service, or information disclosure. Google is aware that an exploit for CVE-2025-5419 exists in the wild.

xorg server -- Multiple vulnerabilities

MongoDB -- Running certain aggregation operations with the SBE engine may lead to unexpected behavior

Dropping security updates for WordPress versions 4.1 through 4.6

As of July 2025, the WordPress Security Team will no longer provide security updates for WordPress versions 4.1 through 4.6. These versions were first released nine or more years ago and over 99% of WordPress installations run a more recent[…]

WP Engine Reprieve

I’ve heard from WP Engine customers that they are frustrated that WP Engine hasn’t been able to make updates, plugin directory, theme directory, and Openverse work on their sites. It saddens me that they’ve been negatively impacted by Silver Lake‘s[…]

WordPress 6.5.5

WordPress 6.5.5 is now available! This release features three security fixes. Because this is a security release, it is recommended that you update your sites immediately. This minor release also includes 3 bug fixes in Core. You can download WordPress[…]

WordPress 6.4.3 – Maintenance and Security release

This security and maintenance release features 5 bug fixes on Core, 16 bug fixes for the Block Editor, and 2 security fixes. Because this is a security release, it is recommended that you update your sites immediately. Backports are also[…]

Alert: WordPress Security Team Impersonation Scams

The WordPress Security Team is aware of multiple ongoing phishing scams impersonating both the “WordPress team” and the “WordPress Security Team“ in an attempt to convince administrators to install a plugin on their website which contains malware. The WordPress Security[…]