Buffer overflow in Mozilla Firefox - CVE-2019-9788

Vulnerability identifier: #VU18048

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-9788

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 multiple boundary errors when processing HTML content. A remote attacker trick the victim into visiting a specially crafted website, 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 for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power
Opensuse
Ubuntu
SUSE Package Hub for SUSE Linux Enterprise
Mozilla Thunderbird
firefox-esr (Alpine package)
firefox (Ubuntu package)
firefox-esr (Debian package)
thunderbird (Ubuntu package)
thunderbird (Debian package)

Install updates from vendor's website.

Mozilla Firefox - update to 66.0
Mozilla Thunderbird - update to 60.6.0
Firefox ESR - update to 60.6.0
firefox-esr (Alpine package) - update to 60.6.1-r0
firefox (Ubuntu package) - addressed in versions 66.0+build3-0ubuntu0.16.04.2, 66.0+build3-0ubuntu0.18.04.1, 66.0+build3-0ubuntu0.18.10.1, 66.0.1+build1-0ubuntu0.14.04.1, 66.0.2+build1-0ubuntu0.14.04.1, 66.0.2+build1-0ubuntu0.16.04.1, 66.0.2+build1-0ubuntu0.18.04.1, 66.0.2+build1-0ubuntu0.18.10.1, 66.0.3+build1-0ubuntu0.14.04.1, 66.0.3+build1-0ubuntu0.16.04.1, 66.0.3+build1-0ubuntu0.18.04.1, 66.0.3+build1-0ubuntu0.18.10.1
firefox-esr (Debian package) - update to 60.6.0esr-1~deb9u1
thunderbird (Ubuntu package) - addressed in versions 1:60.6.1+build2-0ubuntu0.14.04.1, 1:60.6.1+build2-0ubuntu0.16.04.1, 1:60.6.1+build2-0ubuntu0.18.04.1, 1:60.6.1+build2-0ubuntu0.18.10.1
thunderbird (Debian package) - update to 1:60.6.1-1~deb9u1

• https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1520483%2C1522987%2C1528199%2C1519337%2C1525549%2C15...

• Multiple vulnerabilities in Mozilla Firefox
• Multiple vulnerabilities in Mozilla Firefox ESR
• Debian update for firefox-esr
• Multiple vulnerabilities in Mozilla Thunderbird
• Ubuntu update for Firefox
• Ubuntu update for Thunderbird
• Ubuntu regression update for Firefox
• Debian update for thunderbird
• Ubuntu regression update for Firefox
• Arch Linux update for firefox
• OpenSUSE Linux update for MozillaThunderbird
• OpenSUSE Linux update for MozillaFirefox
• OpenSUSE Linux update for MozillaFirefox
• OpenSUSE Linux update for MozillaThunderbird
• 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)
• Ubuntu update for firefox