Permissions, Privileges, and Access Controls in Mozilla Firefox - CVE-2018-18511

Vulnerability identifier: #VU17654

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-18511

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass same-origin policy.

The vulnerability exists due to an error when processing canvas elements with transferFromImageBitmap method. A remote attacker can create a specially crafted website, trick the victim into visiting it, bypass cross-origin policy and view images loaded in other browser tabs.

Mozilla Firefox
Arch Linux
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power
Slackware Linux
Opensuse
SUSE Package Hub for SUSE Linux Enterprise
thunderbird (Ubuntu package)
firefox (Ubuntu package)
firefox-esr (Debian package)
firefox-esr (Alpine package)
thunderbird (Debian package)
Mozilla Thunderbird

Install updates from vendor's website.

Mozilla Firefox - update to 65.0.1
thunderbird (Ubuntu package) - addressed in versions 1:60.7.0+build1-0ubuntu0.16.04.1, 1:60.7.0+build1-0ubuntu0.18.04.1, 1:60.7.0+build1-0ubuntu0.18.10.1, 1:60.7.0+build1-0ubuntu0.19.04.1
firefox (Ubuntu package) - addressed in versions 65.0.1+build2-0ubuntu0.14.04.1, 65.0.1+build2-0ubuntu0.16.04.1, 65.0.1+build2-0ubuntu0.18.04.1, 65.0.1+build2-0ubuntu0.18.10.1
firefox-esr (Debian package) - update to 60.7.0esr-1~deb9u1
Mozilla Thunderbird - update to 60.7.0
firefox-esr (Alpine package) - update to 60.7.0-r0
thunderbird (Debian package) - update to 1:60.7.0-1~deb9u1

• https://www.mozilla.org/en-US/security/advisories/mfsa2019-04/

• Multiple vulnerabilities in Mozilla Firefox
• Arch Linux update for firefox
• Ubuntu update for Firefox
• Multiple vulnerabilities in Mozilla Thunderbird
• Slackware Linux update for mozilla-firefox
• Arch Linux update for thunderbird
• Debian update for firefox-esr
• Ubuntu update for Thunderbird
• OpenSUSE Linux update for MozillaThunderbird
• OpenSUSE Linux update for MozillaFirefox
• OpenSUSE Linux update for MozillaThunderbird
• Debian update for thunderbird
• Red Hat update for thunderbird
• Red Hat update for thunderbird
• Red Hat update for firefox
• Red Hat update for firefox
• Red Hat update for thunderbird
• Red Hat update for firefox
• Permissions, Privileges, and Access Controls in firefox-esr (Alpine package)