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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --2w6Oe1c9JAtVoLqKC6gPvlWIVRFMkkBTF Content-Type: multipart/mixed; boundary="JnIIs95QSf2pEUm9dDFO1dEUrRTeB2Tk5" From: Chris Coulson <chris.coulson@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <26923fef-d7d3-3db1-9622-01a232b98874@canonical.com> Subject: [USN-2936-2] Oxygen-GTK3 update
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========================================================================== Ubuntu Security Notice USN-2936-2 May 02, 2016
oxygen-gtk3 update ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
USN-2936-1 caused Firefox to crash on startup with the Oxygen GTK theme
Software Description: - oxygen-gtk3: Oxygen widget theme for GTK3-based applications
Details:
USN-2936-1 fixed vulnerabilities in Firefox. The update caused Firefox to crash on startup with the Oxygen GTK theme due to a pre-existing bug in the Oxygen-GTK3 theme engine. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Christian Holler, Tyson Smith, Phil Ringalda, Gary Kwong, Jesse Ruderman, Mats Palmgren, Carsten Book, Boris Zbarsky, David Bolter, Randell Jesup, Andrew McCreight, and Steve Fink discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2804, CVE-2016-2806, CVE-2016-2807) An invalid write was discovered when using the JavaScript .watch() method in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2808) Looben Yang discovered a use-after-free and buffer overflow in service workers. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2811, CVE-2016-2812) Sascha Just discovered a buffer overflow in libstagefright in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2814) Muneaki Nishimura discovered that CSP is not applied correctly to web content sent with the multipart/x-mixed-replace MIME type. An attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks when they would otherwise be prevented. (CVE-2016-2816) Muneaki Nishimura discovered that the chrome.tabs.update API for web extensions allows for navigation to javascript: URLs. A malicious extension could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-2817) Mark Goodwin discovered that about:healthreport accepts certain events from any content present in the remote-report iframe. If another vulnerability allowed the injection of web content in the remote-report iframe, an attacker could potentially exploit this to change the user's sharing preferences. (CVE-2016-2820)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 LTS: gtk3-engines-oxygen 1.0.2-0ubuntu3
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2936-2 http://www.ubuntu.com/usn/usn-2936-1 https://launchpad.net/bugs/1575781
Package Information: https://launchpad.net/ubuntu/+source/oxygen-gtk3/1.0.2-0ubuntu3
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