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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --CPQBQ7TZyZm4IHZB2iHRVIdbyVCHPNe91 Content-Type: multipart/mixed; boundary="ehXiRpYzcUxzDSKD78U9KJoiCis2k0Gda"; protected-headers="v1" From: Chris Coulson <chris.coulson@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <3c36b62d-bb4b-a820-00f1-de39325b3228@canonical.com> Subject: [USN-4122-1] Firefox vulnerabilities
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========================================================================== Ubuntu Security Notice USN-4122-1 September 04, 2019
firefox vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Firefox could be made to crash or run programs as your login if it opened a malicious website.
Software Description: - firefox: Mozilla Open Source web browser
Details:
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 obtain sensitive information, bypass Content Security Policy (CSP) protections, bypass same-origin restrictions, conduct cross-site scripting (XSS) attacks, cause a denial of service, or execute arbitrary code. (CVE-2019-5849, CVE-2019-11734, CVE-2019-11735, CVE-2019-11737, CVE-2019-11738, CVE-2019-11740, CVE-2019-11742, CVE-2019-11743, CVE-2019-11744, CVE-2019-11746, CVE-2019-11748, CVE-2019-11749, CVE-2019-11750, CVE-2019-11752)
It was discovered that a compromised content process could log in to a malicious Firefox Sync account. An attacker could potentially exploit this, in combination with another vulnerability, to disable the sandbox. (CVE-2019-9812)
It was discovered that addons.mozilla.org and accounts.firefox.com could be loaded in to the same content process. An attacker could potentially exploit this, in combination with another vulnerability that allowed a cross-site scripting (XSS) attack, to modify browser settings. (CVE-2019-11741)
It was discovered that the "Forget about this site" feature in the history pane removes HTTP Strict Transport Security (HSTS) settings for sites on the pre-load list. An attacker could potentially exploit this to bypass the protections offered by HSTS. (CVE-2019-11747)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.04: firefox 69.0+build2-0ubuntu0.19.04.1
Ubuntu 18.04 LTS: firefox 69.0+build2-0ubuntu0.18.04.1
Ubuntu 16.04 LTS: firefox 69.0+build2-0ubuntu0.16.04.4
After a standard system update you need to restart Firefox to make all the necessary changes.
References: https://usn.ubuntu.com/4122-1 CVE-2019-11734, CVE-2019-11735, CVE-2019-11737, CVE-2019-11738, CVE-2019-11740, CVE-2019-11741, CVE-2019-11742, CVE-2019-11743, CVE-2019-11744, CVE-2019-11746, CVE-2019-11747, CVE-2019-11748, CVE-2019-11749, CVE-2019-11750, CVE-2019-11752, CVE-2019-5849, CVE-2019-9812
Package Information: https://launchpad.net/ubuntu/+source/firefox/69.0+build2-0ubuntu0.19.04.1 https://launchpad.net/ubuntu/+source/firefox/69.0+build2-0ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/firefox/69.0+build2-0ubuntu0.16.04.4
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