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Attacking the VM Worker Process

2019-09-12 KENNETH 0

Attacking the VM Worker Process In the past year we invested a lot of time making Hyper-V research more accessible to everyone. Our first blog post, “First Steps in Hyper-V Research”, describes the tools and setup for debugging the hypervisor and examines the interesting attack surfaces of the virtualization stack components. We then published “Fuzzing para-virtualized devices in Hyper-V”, which … Attacking the VM Worker Process Read More » The post Attacking the VM Worker Process appeared first on Microsoft Security Response Center. Source: Attacking the VM Worker Process

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USN-4131-1: VLC vulnerabilities

2019-09-12 KENNETH 0

USN-4131-1: VLC vulnerabilities vlc vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Summary Several security issues were fixed in VLC. Software Description vlc – multimedia player and streamer Details It was discovered that VLC incorrectly handled certain media files. If a user were tricked into opening a specially-crafted file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 vlc – 3.0.8-0ubuntu19.04.1 Ubuntu 18.04 LTS vlc – 3.0.8-0ubuntu18.04.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2019-13962 CVE-2019-14437 CVE-2019-14438 CVE-2019-14498 CVE-2019-14533 CVE-2019-14534 CVE-2019-14535 CVE-2019-14776 CVE-2019-14777 CVE-2019-14778 [ more… ]

Announcing Windows 10 Insider Preview Build 18980

2019-09-12 KENNETH 0

Announcing Windows 10 Insider Preview Build 18980 Hello Windows Insiders, today we’re releasing Windows 10 Insider Preview Build 18980 (20H1) to Windows Insiders in the Fast ring. IMPORTANT: As is normal with pre-release builds, these builds may contain bugs that might be painful for some. If you take this flight, you won’t be able to switch Slow or Release Preview rings without doing a clean-install on your PC. If you want a complete look at what build is in which Insider ring, head over to Flight Hub. You can also check out the rest of our documentation here including a complete list of new features and updates that have gone out as part of Insider flights for the current development cycle. Not seeing any of the features in this build? Check your Windows Insider Settings to make sure you’re on [ more… ]

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USN-4130-1: WebKitGTK+ vulnerabilities

2019-09-12 KENNETH 0

USN-4130-1: WebKitGTK+ vulnerabilities webkit2gtk vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Summary Several security issues were fixed in WebKitGTK+. Software Description webkit2gtk – Web content engine library for GTK+ Details A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 libjavascriptcoregtk-4.0-18 – 2.24.4-0ubuntu0.19.04.1 libwebkit2gtk-4.0-37 – 2.24.4-0ubuntu0.19.04.1 Ubuntu 18.04 LTS libjavascriptcoregtk-4.0-18 – 2.24.4-0ubuntu0.18.04.1 libwebkit2gtk-4.0-37 – 2.24.4-0ubuntu0.18.04.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. This update uses a new upstream release, [ more… ]

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USN-4129-1: curl vulnerabilities

2019-09-11 KENNETH 0

USN-4129-1: curl vulnerabilities curl vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Several security issues were fixed in curl. Software Description curl – HTTP, HTTPS, and FTP client and client libraries Details Thomas Vegas discovered that curl incorrectly handled memory when using Kerberos over FTP. A remote attacker could use this issue to crash curl, resulting in a denial of service. (CVE-2019-5481) Thomas Vegas discovered that curl incorrectly handled memory during TFTP transfers. A remote attacker could use this issue to crash curl, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-5482) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 curl – 7.64.0-2ubuntu1.2 libcurl3-gnutls – 7.64.0-2ubuntu1.2 libcurl3-nss – 7.64.0-2ubuntu1.2 libcurl4 – 7.64.0-2ubuntu1.2 Ubuntu 18.04 [ more… ]