QEMU: I/O: potential memory exhaustion via websock connection to VNC

A memory leakage issue was found in the I/O channels websockets implementation of the Quick Emulator QEMU. It could occur while sending screen updates to a client, which is slow to read and process them further. A privileged guest user could use this flaw to cause a denial of service on the host...

Remote code execution

In some circumstances, the Traffic Management Microkernel TMM does not properly handle certain malformed Websockets requests/responses, which allows remote attackers to cause a denial-of-service DoS or possible remote code execution on the F5 BIG-IP system running versions 13.0.0 - 13.1.0.3 or...

CVE-2018-5504

In some circumstances, the Traffic Management Microkernel TMM does not properly handle certain malformed Websockets requests/responses, which allows remote attackers to cause a denial-of-service DoS or possible remote code execution on the F5 BIG-IP system running versions 13.0.0 - 13.1.0.3 or...

Ubuntu 14.04 LTS / 16.04 LTS : QEMU regression (USN-3575-2)

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3575-2 advisory. USN-3575-1 fixed vulnerabilities in QEMU. The fix for CVE-2017-11334 caused a regression in Xen environments. This update removes the problematic fix...

Ubuntu 14.04 LTS / 16.04 LTS : QEMU vulnerabilities (USN-3575-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3575-1 advisory. It was discovered that QEMU incorrectly handled guest ram. A privileged attacker inside the guest could use this issue to cause QEMU to crash...

USN-3575-1 qemu vulnerabilities

It was discovered that QEMU incorrectly handled guest ram. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. CVE-2017-11334 David Buchanan discovered that QEMU...

WebSocket C2 Communication Channel: WSC2

WSC2 is a PoC of using the WebSockets and a browser process to serve as a C2 communication channel between an agent, running on the target system, and a controller acting as the actuel C2 server. WSC2 is composed of: a controller, written in Python, which acts as the C2 server an agent running on...

WSC2 - A WebSocket C2 Tool

WSC2 is a PoC of using the WebSockets and a browser process to serve as a C2 communication channel between an agent, running on the target system, and a controller acting as the actuel C2 server. Background information Check this blog post to get some context and insight on the developpment of th...

CVE-2017-15268

A memory leakage issue was found in the I/O channels websockets implementation of the Quick Emulator QEMU. It could occur while sending screen updates to a client, which is slow to read and process them further. A privileged guest user could use this flaw to cause a denial of service on the host...

SUSE SLED12 / SLES12 Security Update : MozillaFirefox (SUSE-SU-2017:2589-1)

This update for MozillaFirefox to ESR 52.3 fixes several issues. These security issues were fixed : - CVE-2017-7807 Domain hijacking through AppCache fallback bsc1052829 - CVE-2017-7791 Spoofing following page navigation with data: protocol and modal alerts bsc1052829 - CVE-2017-7792 Buffer...

SUSE-SU-2017:2589-1 Security update for MozillaFirefox

This update for MozillaFirefox to ESR 52.3 fixes several issues. These security issues were fixed: - CVE-2017-7807 Domain hijacking through AppCache fallback bsc1052829 - CVE-2017-7791 Spoofing following page navigation with data: protocol and modal alerts bsc1052829 - CVE-2017-7792 Buffer overfl...

Mozilla: Use-after-free in WebSockets during disconnection (MFSA 2017-19)

A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird 52.3, Firefox ESR 52.3, and Firefox 55...

[ASA-201708-18] thunderbird: multiple issues

Arch Linux Security Advisory ASA-201708-18 ========================================== Severity: Critical Date : 2017-08-23 CVE-ID : CVE-2017-7753 CVE-2017-7779 CVE-2017-7784 CVE-2017-7785 CVE-2017-7786 CVE-2017-7787 CVE-2017-7791 CVE-2017-7792 CVE-2017-7800 CVE-2017-7801 CVE-2017-7802 CVE-2017-78...

openSUSE Security Update : MozillaFirefox (openSUSE-2017-921)

This update to Mozilla Firefox 52.3esr fixes a number of security issues. The following vulnerabilities were advised upstream under MFSA 2017-19 boo1052829 : - CVE-2017-7798: XUL injection in the style editor in devtools - CVE-2017-7800: Use-after-free in WebSockets during disconnection -...

Mozilla Firefox suffers from a misreference vulnerability (CNVD-2017-22794)

Mozilla Firefox is an open source web browser developed by the Mozilla Foundation in the U.S. WebSockets is one of the functionality to support the browser to communicate with the server module. A memory misreference vulnerability exists in WebSockets in versions of Mozilla Firefox prior to 55. A...

Mozilla: Use-after-free in WebSockets during disconnection (MFSA 2017-19)

A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird 52.3, Firefox ESR 52.3, and Firefox 55...

UBUNTU-CVE-2017-7800

A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird 52.3, Firefox ESR 52.3, and Firefox 55...

CVE-2017-7800

A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird 52.3, Firefox ESR 52.3, and Firefox 55...

Mozilla Fixes 29 Vulnerabilities in Firefox, Makes Flash Click-To-Activate

Mozilla fixed three critical vulnerabilities when it released Firefox 55 on Tuesday, including bugs that could have triggered a crash of the browser and allowed for the execution of arbitrary code. The code execution vulnerability stems from an XUL injection vulnerability due to improper...

CVE-2017-7800

A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird 52.3, Firefox ESR 52.3, and Firefox 55...