CVE-2017-5386

WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.

Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox (CVE-2017-5373, CVE-2017-5375, CVE-2017-5376, CVE-2017-5378, CVE-2017-5380, CVE-2017-5383, CVE-2017-5386, CVE-2017-5390, CVE-2017-5396).

Updated Iceape packages include security fixes from upstream Seamonkey:

Multiple flaws were found in the way Iceape 2.46 processes various types of web content, where loading a web page containing malicious content could cause Iceape to crash, execute arbitrary code, or disclose sensitive information. (CVE-2016-5287, CVE-2016-5288, CVE-2016-5289, CVE-2016-5290, CVE-2016-5292, CVE-2016-5297, CVE-2016-9064, CVE-2016-9066, CVE-2016-9067, CVE-2016-9068, CVE-2016-9075, CVE-2016-9077, CVE-2016-5291, CVE-2016-9063, CVE-2016-9070, CVE-2016-9071, CVE-2016-9073, CVE-2016-9076, CVE-2016-9078, CVE-2016-9080, CVE-2016-9893, CVE-2016-9894, CVE-2016-9895, CVE-2016-9896, CVE-2016-9897, CVE-2016-9898, CVE-2016-9899, CVE-2016-9900, CVE-2016-9901, CVE-2016-9902, CVE-2016-9903, CVE-2016-9904, CVE-2017-5373, CVE-2017-5374, CVE-2017-5375, CVE-2017-5376, CVE-2017-5377, CVE-2017-5378, CVE-2017-5379, CVE-2017-5380, CVE-2017-5381, CVE-2017-5382, CVE-2017-5383, CVE-2017-5384, CVE-2017-5385, CVE-2017-5386, CVE-2017-5387, CVE-2017-5388, CVE-2017-5389, CVE-2017-5390, CVE-2017-5391, CVE-2017-5393, CVE-2017-5396)

These are all security issues fixed in the MozillaFirefox-92.0-1.2 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

MozillaFirefox 45 ESR was updated to 45.7 to fix the following issues (bsc#1021991):

• MFSA 2017-02/CVE-2017-5378: Pointer and frame data leakage of Javascript objects (bsc#1021818)
• MFSA 2017-02/CVE-2017-5396: Use-after-free with Media Decoder (bsc#1021821)
• MFSA 2017-02/CVE-2017-5386: WebExtensions can use data: protocol to affect other extensions (bsc#1021823)
• MFSA 2017-02/CVE-2017-5380: Potential use-after-free during DOM manipulations (bsc#1021819)
• MFSA 2017-02/CVE-2017-5390: Insecure communication methods in Developer Tools JSON viewer (bsc#1021820)
• MFSA 2017-02/CVE-2017-5373: Memory safety bugs fixed in Firefox 51 and Firefox ESR 45.7 (bsc#1021824)
• MFSA 2017-02/CVE-2017-5375: Excessive JIT code allocation allows bypass of ASLR and DEP (bsc#1021814)
• MFSA 2017-02/CVE-2017-5376: Use-after-free in XSL (bsc#1021817)
• MFSA 2017-02/CVE-2017-5383: Location bar spoofing with unicode characters (bsc#1021822)

Please see https://www.mozilla.org/en-US/security/advisories/mfsa2017-02/ for more information.

MozillaFirefox 45 ESR was updated to 45.7 to fix the following issues (bsc#1021991):

• MFSA 2017-02/CVE-2017-5378: Pointer and frame data leakage of Javascript objects (bsc#1021818)
• MFSA 2017-02/CVE-2017-5396: Use-after-free with Media Decoder (bsc#1021821)
• MFSA 2017-02/CVE-2017-5386: WebExtensions can use data: protocol to affect other extensions (bsc#1021823)
• MFSA 2017-02/CVE-2017-5380: Potential use-after-free during DOM manipulations (bsc#1021819)
• MFSA 2017-02/CVE-2017-5390: Insecure communication methods in Developer Tools JSON viewer (bsc#1021820)
• MFSA 2017-02/CVE-2017-5373: Memory safety bugs fixed in Firefox 51 and Firefox ESR 45.7 (bsc#1021824)
• MFSA 2017-02/CVE-2017-5375: Excessive JIT code allocation allows bypass of ASLR and DEP (bsc#1021814)
• MFSA 2017-02/CVE-2017-5376: Use-after-free in XSL (bsc#1021817)
• MFSA 2017-02/CVE-2017-5383: Location bar spoofing with unicode characters (bsc#1021822)

Please see https://www.mozilla.org/en-US/security/advisories/mfsa2017-02/ for more information.

Multiple memory safety issues were discovered 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. (CVE-2017-5373, CVE-2017-5374)

JIT code allocation can allow a bypass of ASLR protections 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. (CVE-2017-5375)

Nicolas Grégoire discovered a use-after-free when manipulating XSL in XSLT documents 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. (CVE-2017-5376)

Atte Kettunen discovered a memory corruption issue in Skia 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. (CVE-2017-5377)

Jann Horn discovered that an object's address could be discovered through hashed codes of JavaScript objects shared between pages. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. (CVE-2017-5378)

A use-after-free was discovered in Web Animations 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. (CVE-2017-5379)

A use-after-free was discovered during DOM manipulation of SVG content 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. (CVE-2017-5380)

Jann Horn discovered that the "export" function in the Certificate Viewer can force local filesystem navigation when the Common Name contains slashes. If a user were tricked in to exporting a specially crafted certificate, an attacker could potentially exploit this to save content with arbitrary filenames in unsafe locations. (CVE-2017-5381)

Jerri Rice discovered that the Feed preview for RSS feeds can be used to capture errors and exceptions generated by privileged content. An attacker could potentially exploit this to obtain sensitive information. (CVE-2017-5382)

Armin Razmjou discovered that certain unicode glyphs do not trigger punycode display. An attacker could potentially exploit this to spoof the URL bar contents. (CVE-2017-5383)

Paul Stone and Alex Chapman discovered that the full URL path is exposed to JavaScript functions specified by Proxy Auto-Config (PAC) files. If a user has enabled Web Proxy Auto Detect (WPAD), an attacker could potentially exploit this to obtain sensitive information. (CVE-2017-5384)

Muneaki Nishimura discovered that data sent in multipart channels will ignore the Referrer-Policy response headers. An attacker could potentially exploit this to obtain sensitive information. (CVE-2017-5385)

Muneaki Nishimura discovered that WebExtensions can affect other extensions using the data: protocol. If a user were tricked in to installing a specially crafted addon, an attacker could potentially exploit this to obtain sensitive information or gain additional privileges. (CVE-2017-5386)

Mustafa Hasan discovered that the existence of local files can be determined using the <track> element. An attacker could potentially exploit this to obtain sensitive information. (CVE-2017-5387)

Cullen Jennings discovered that WebRTC can be used to generate large amounts of UDP traffic. An attacker could potentially exploit this to conduct Distributed Denial-of-Service (DDOS) attacks. (CVE-2017-5388)

Kris Maglione…