Arch Linux Security Advisory ASA-201504-1 ========================================= Severity: Critical Date : 2015-04-01 CVE-ID : CVE-2015-0801 CVE-2015-0802 CVE-2015-0803 CVE-2015-0804 CVE-2015-0805 CVE-2015-0806 CVE-2015-0807 CVE-2015-0808 CVE-2015-0811 CVE-2015-0812 CVE-2015-0813 CVE-2015-0814 CVE-2015-0815 CVE-2015-0816 Package : firefox Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package firefox before version 37.0-1 is vulnerable to multiple issues including but not limited to arbitrary code execution, same-origin bypass, information disclosure, cross-site request forgery and denial of service. Resolution ========== Upgrade to 37.0-1. # pacman -Syu "firefox>=37.0-1" The problems have been fixed upstream in version 37.0. Workaround ========== None. Description =========== - CVE-2015-0801 (same-origin bypass) Mozilla developer Olli Pettay reported that while investigating Mozilla Foundation Security Advisory 2015-28, he and Mozilla developer Boris Zbarsky found an alternate way to trigger a similar vulnerability. The previously reported flaw used an issue with SVG content navigation to bypass same-origin policy protections to run scripts in a privileged context. This newer variant found that the same flaw could be used during anchor navigation of a page, allowing bypassing of same-origin policy protections. - CVE-2015-0802 (privilege boundary violation) Mozilla developer Bobby Holley reported that windows created to hold privileged UI content retained access to privileged internal methods if later navigated to unprivileged content. If a separate flaw was found that allowed for web content to reference these privileged windows, an attacker could use this reference to navigate them to their own content allowing for an escalation of privilege and arbitrary code execution. On its own, this flaw does not allow for privilege escalation by web content. - CVE-2015-0803 (use-after-free) Security researcher Nils used the Address Sanitizer tool to discover two type confusion flaws. The first of these occurs while setting specific attributes of a source element resulting in incorrect object casting. The second flaw occurs when binding a source to a tree when the function fails to validate the namespace. These flaws lead to use-after-free errors, resulting in potentially exploitable crashes. - CVE-2015-0804 (use-after-free) Security researcher Nils used the Address Sanitizer tool to discover two type confusion flaws. The first of these occurs while setting specific attributes of a source element resulting in incorrect object casting. The second flaw occurs when binding a source to a tree when the function fails to validate the namespace. These flaws lead to use-after-free errors, resulting in potentially exploitable crashes. - CVE-2015-0805 (memory corruption) Security researcher Abhishek Arya (Inferno) of the Google Chrome Security Team used the Address Sanitizer tool to discover two memory corruption crashes during 2D graphics rendering due to problems in Off Main Thread Compositing. These crashes are potentially exploitable. - CVE-2015-0806 (memory corruption) Security researcher Abhishek Arya (Inferno) of the Google Chrome Security Team used the Address Sanitizer tool to discover two memory corruption crashes during 2D graphics rendering due to problems in Off Main Thread Compositing. These crashes are potentially exploitable. - CVE-2015-0807 (cross-site request forgery) A flaw was found in the Beacon interface implementation in Firefox. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack. - CVE-2015-0808 (mismatched free) Security researcher Mitchell Harper used Valgrind to discover incorrect memory management for simple-type arrays in WebRTC. This was undefined behavior which is theoretically dangerous but was determined to be safe in this instance. - CVE-2015-0811 (information disclosure) Security researcher Felix Gröbert of Google used the Address Sanitizer tool to discover an out of bounds read in the QCMS color management library while transforming images with certain parameters. This could lead to information disclosure. - CVE-2015-0812 (approval bypass) Security researcher Armin Razmdjou discovered that a man-in-the-middle (MITM) attacker spoofing a Mozilla sub-domain could bypass user approval messages to install a Firefox lightweight theme. This was possible because add-on installations of the lightweight themes do not require the use of HTTP over SSL. Firefox extensions were not directly affected and still required user approval for installation. - CVE-2015-0813 (use-after-free) Security researcher Aki Helin reported a use-after-free when playing certain MP3 format audio files on the web using the Fluendo MP3 plugin for GStreamer on Linux. This is due to a flaw in handling certain MP3 files by the plugin and its interaction with Mozilla code. This can lead to a potentially exploitable crash. - CVE-2015-0814 (arbitrary code execution) Mozilla developers and community identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code. - CVE-2015-0815 (arbitrary code execution) Mozilla developers and community identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code. - CVE-2015-0816 (arbitrary code execution) Security researcher Mariusz Mlynski reported, through HP Zero Day Initiative's Pwn2Own contest, that documents loaded though a resource: URL, such as Mozilla's PDF.js PDF file viewer, were able to subsequently load privileged chrome pages. The privilege restrictions on resource: URLs was handled incorrectly and these restrictions could be bypassed if this flaw was combined with a separate vulnerability allowing for same-origin policy violation, it could be used to run arbitrary code. Impact ====== A remote attacker is able to execute arbitrary code, bypass the same-origin policy, conduct cross-site request forgery, take advantage of information disclosure, perform denial of service or possibly have other impact via various vectors. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2015-30/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-31/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-32/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-33/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-34/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-36/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-38/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-39/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-40/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-42/ https://access.redhat.com/security/cve/CVE-2015-0801 https://security-tracker.debian.org/tracker/CVE-2015-0802 https://security-tracker.debian.org/tracker/CVE-2015-0803 https://security-tracker.debian.org/tracker/CVE-2015-0804 https://security-tracker.debian.org/tracker/CVE-2015-0805 https://security-tracker.debian.org/tracker/CVE-2015-0806 https://access.redhat.com/security/cve/CVE-2015-0807 https://security-tracker.debian.org/tracker/CVE-2015-0808 https://security-tracker.debian.org/tracker/CVE-2015-0811 https://security-tracker.debian.org/tracker/CVE-2015-0812 https://security-tracker.debian.org/tracker/CVE-2015-0813 https://security-tracker.debian.org/tracker/CVE-2015-0814 https://access.redhat.com/security/cve/CVE-2015-0815 https://access.redhat.com/security/cve/CVE-2015-0816