Buffer overflow in Mozilla Firefox - CVE-2019-11693

Vulnerability identifier: #VU18558

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-11693

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in bufferdata function in WebGL with specific graphics drivers on Linux. A remote attacker can create a specially crafted web apge, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mozilla Firefox
Firefox ESR
Arch Linux
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Server
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 67.0
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 67.0+build2-0ubuntu0.16.04.1, 67.0+build2-0ubuntu0.18.04.1, 67.0+build2-0ubuntu0.18.10.1, 67.0+build2-0ubuntu0.19.04.1, 67.0.1+build1-0ubuntu0.16.04.1, 67.0.1+build1-0ubuntu0.18.04.1, 67.0.1+build1-0ubuntu0.18.10.1, 67.0.1+build1-0ubuntu0.19.04.1, 67.0.2+build2-0ubuntu0.16.04.1, 67.0.2+build2-0ubuntu0.18.04.1, 67.0.2+build2-0ubuntu0.18.10.1, 67.0.2+build2-0ubuntu0.19.04.1
firefox-esr (Debian package) - update to 60.7.0esr-1~deb9u1
Firefox ESR - update to 60.7.0
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/mfsa2019-13/

• Multiple vulnerabilities in Mozilla Firefox
• Multiple vulnerabilities in Firefox ESR
• Ubuntu update for Firefox
• Multiple vulnerabilities in Mozilla Thunderbird
• Slackware Linux update for mozilla-firefox
• Arch Linux update for thunderbird
• Arch Linux update for firefox
• Debian update for firefox-esr
• Ubuntu update for Thunderbird
• OpenSUSE Linux update for MozillaThunderbird
• USN-3991-2: Firefox regression
• OpenSUSE Linux update for MozillaFirefox
• Ubuntu regression update for Firefox (regression update)
• 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
• Buffer overflow in firefox-esr (Alpine package)