CVE-2018-5163

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

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.

This update for MozillaFirefox to 68.2.0 ESR fixes the following issues:

Mozilla Firefox was updated to version 68.2.0 ESR (bsc#1154738).

Security issues fixed:

• CVE-2019-15903: Fixed a heap overflow in the expat library (bsc#1149429).
• CVE-2019-11757: Fixed a use-after-free when creating index updates in IndexedDB (bsc#1154738).
• CVE-2019-11758: Fixed a potentially exploitable crash due to 360 Total Security (bsc#1154738).
• CVE-2019-11759: Fixed a stack buffer overflow in HKDF output (bsc#1154738).
• CVE-2019-11760: Fixed a stack buffer overflow in WebRTC networking (bsc#1154738).
• CVE-2019-11761: Fixed an unintended access to a privileged JSONView object (bsc#1154738).
• CVE-2019-11762: Fixed a same-origin-property violation (bsc#1154738).
• CVE-2019-11763: Fixed an XSS bypass (bsc#1154738).
• CVE-2019-11764: Fixed several memory safety bugs (bsc#1154738).

Non-security issues fixed:

• Firefox 60.7 ESR changed the user interface language (bsc#1137990).
• Wrong Firefox GUI Language (bsc#1120374).
• Fixed an inadvertent crash report transmission without user opt-in (bsc#1074235).
• Firefox hangs randomly when browsing and scrolling (bsc#1043008).
• Firefox stops loading page until mouse is moved (bsc#1025108).

Multiple security 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, bypass same-origin restrictions, conduct cross-site scripting (XSS) attacks, install lightweight themes without user interaction, spoof the filename in the downloads panel, or execute arbitrary code. (CVE-2018-5150, CVE-2018-5151, CVE-2018-5153, CVE-2018-5154, CVE-2018-5155, CVE-2018-5157, CVE-2018-5158, CVE-2018-5159, CVE-2018-5160, CVE-2018-5163, CVE-2018-5164, CVE-2018-5168, CVE-2018-5173, CVE-2018-5175, CVE-2018-5177, CVE-2018-5180)

Multiple security issues were discovered with WebExtensions. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit these to obtain sensitive information, or bypass security restrictions. (CVE-2018-5152, CVE-2018-5166)

It was discovered that the web console and JavaScript debugger incorrectly linkified chrome: and javascript URLs. If a user were tricked in to clicking a specially crafted link, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2018-5167)

It was discovered that dragging and dropping link text on to the home button could set the home page to include chrome pages. If a user were tricked in to dragging and dropping a specially crafted link on to the home button, an attacker could potentially exploit this bypass security restrictions. (CVE-2018-5169)

It was discovered that the Live Bookmarks page and PDF viewer would run script pasted from the clipboard. If a user were tricked in to copying and pasting specially crafted text, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2018-5172)

It was discovered that the JSON viewer incorrectly linkified javascript: URLs. If a user were tricked in to clicking on a specially crafted link, an attacker could potentially exploit this to obtain sensitive information. (CVE-2018-5176)

It was discovered that dragging a file: URL on to a tab that is running in a different process would cause the file to open in that process. If a user were tricked in to dragging a file: URL, an attacker could potentially exploit this to bypass intended security policies. (CVE-2018-5181)

It was discovered that dragging text that is a file: URL on to the addressbar would open the specified file. If a user were tricked in to dragging specially crafted text on to the addressbar, an attacker could potentially exploit this to bypass intended security policies. (CVE-2018-5182)